?a

a發(fā)音

英：[e?]　　美：[e?]

英：　　美：

a中文意思翻譯

art.一(個(gè)), 每一(個(gè)), 任一（個(gè)）

a詞形變化

名詞復數: a's |

a常見(jiàn)例句

1 、A bowl of hot chicken soup is good for you.───喝一碗熱雞湯對你有好處。

2 、It's almost impossible to agree on a unified basic price.───幾乎不可能商定一個(gè)劃一的基本價(jià)格。

3 、He gave a description of what he had seen.───他描述了他所見(jiàn)到的一切。

4 、A man of great ability like him will eventually reach the top.───像他這樣才能出眾的人終究會(huì )升到最上層的。

5 、A syndicate of local businessmen is bidding for the contract.───一個(gè)當地企業(yè)家的聯(lián)合組織在向這一合同投標。

6 、The maid did down the walls with a duster.───女傭用撣帚由上而下地刷除四壁上的塵垢。

7 、He got a lot of dope from the secretary.───他從秘書(shū)那里獲得許多內部消息。

8 、In a frenzy of hate he killed his enemy.───在一陣痛恨的狂亂中，他殺死了敵人。

9 、She is a receptionist in a doctor's office.───她在一位醫生的診所中擔任接待員。

10 、His letter irritated me a little.───他的信使我有點(diǎn)惱怒。

11 、As to the author of the book, I will hazard a guess.───關(guān)於這本書(shū)的作者，我來(lái)試猜一下。

12 、The penguin is a flightless bird.───企鵝是一種不會(huì )飛的鳥(niǎo)。

13 、A country must have the will to repel any invader.───一個(gè)國家得有決心擊退任何入侵者。

14 、It's a tight squeeze to get five people in that small car.───五個(gè)人坐在那個(gè)小車(chē)子里真是太擠了。

15 、He let himself down slowly by means of a tope.───他借助一根繩子慢慢地下來(lái)了。

16 、He lugged a heavy handcart along.───他使勁拉走那笨重的手推車(chē)。

17 、He tried to varnish over the truth with a lie.───他試圖用謊言來(lái)掩蓋真相。

18 、He twisted up with a sudden stab of pain.───一陣突然的劇疼使他挺不起身來(lái)。

19 、Economically, the country is in a very healthy state.───從經(jīng)濟學(xué)的觀(guān)點(diǎn)來(lái)說(shuō)，國家處于很興旺的狀態(tài)之中。

20 、A cloud is a mass of vapor in the sky.───云是天空中的水汽團。

21 、He is on a par with his brother in intelligence.───他在智力方面同他的弟弟不相上下。

22 、Our firm is likely to reap a big profit this year.───今年我們公司很可能獲得巨額利潤。

23 、He is a great guy, a chip off the old block.───他是一位好人，就像他父親一樣。

24 、His interest in photography is only a passing fad.───他對攝影的愛(ài)好僅是一時(shí)的興致。

25 、He doubles the parts of a farmhand and a miner.───在這出戲里他既扮演雇農又扮演礦工。

26 、I got a new coat in that store last week.───上禮拜我在那家店買(mǎi)了一件新外套。

27 、He will sell his house at a sacrifice because he needs money.───因為他缺錢(qián)，他將虧本出售他的房子。

28 、His wife was a constant inspiration to him.───他的妻子經(jīng)常鼓勵他。

29 、It may take a long time to find a solution to the problem.───也許要花很長(cháng)時(shí)間才能找到解決這個(gè)問(wèn)題的辦法。

30 、Don't buy a used car from that rogue.───別從那無(wú)賴(lài)手里買(mǎi)舊車(chē)。

31 、A man appeared at the castle gate in the guise of a woodcutter.───一個(gè)男子打扮成樵夫的模樣出現在城堡的門(mén)口。

32 、He was a dishonor to his regiment.───他是那個(gè)團的恥辱。

33 、Will you partake of a drink with us?───和我們一同喝一杯好嗎？

34 、He pushed hard on the brake pedal to avoid a collision.───他使勁踩下煞車(chē)踏板以避免撞車(chē)。

35 、He is a very good footballer; you ought to see him in action.───他是一位出色的足球運動(dòng)員，你應該看他踢球。

36 、He talks like a parrot and just repeats what he heard.───他只是鸚鵡學(xué)舌，拾人牙慧罷了。

37 、The bank is a ten minutes' run from the hotel.───從旅館到銀行跑步需十分鐘。

38 、He took a lot of flak for his stand against abortion.───他因堅持反對墮胎而飽受責難。

39 、He took out a fire insurance policy for his house.───他為自己的房子辦理了一份火險保險單。

40 、An idea popped into his mind like a flash.───他頭腦里突然閃過(guò)一個(gè)念頭。

41 、He has a lot of clout with the board of directors.───他對董事會(huì )有很大的影響力。

42 、They denounced him to the police as a criminal.───他們向警方告發(fā)他是罪犯。

43 、He glimpsed at my new watch and said it was a good bargain.───他看了一眼我的新表，說(shuō)買(mǎi)得很上算。

44 、They all maintained a reverent silence.───他們都保持肅靜。

45 、They cleaved a path through the wilderness.───他們在荒原中開(kāi)辟出一條路。

46 、The college library is a favorite haunt.───大學(xué)圖書(shū)館是人們喜歡的地方。

47 、He has got a lot of mileage out of the shoes.───他已將那雙鞋穿夠了本錢(qián)。

48 、He took sick and died a week later.───他得了病，一周后就死去了。

49 、I bought a pair of tan leather shoes the other day.───前幾天我買(mǎi)了雙棕褐色的皮鞋。

50 、There is a vein of melancholy in his character.───他的性格中有少許憂(yōu)郁的氣質(zhì)。

51 、She rushed out of the house into a whirling snowstorm.───她沖出屋子走進(jìn)了狂卷著(zhù)的暴風(fēng)雪中。

52 、He cut off a bunch of grapes to entertain us.───他剪下一串葡萄招待我們。

53 、He qualified in London as a teacher of English overseas.───他在倫敦取得了海外英語(yǔ)教師的資格。

54 、He had had a blackout after the accident.───事故發(fā)生后，他暈過(guò)去一陣子。

55 、He has a yen to be alone in a boat.───他渴望獨自待在一條船上。

56 、Have a glass of beer to rinse your dinner down.───喝杯啤酒把你吃的晚飯沖下去。

57 、A few jokes will add a final fillip to your speech.───幾句笑話(huà)會(huì )給你的演說(shuō)添些生氣。

58 、He bit off a large piece of the apple.───他咬下一大塊蘋(píng)果。

59 、A peevish child is unhappy and makes others unhappy.───一個(gè)脾氣暴躁的孩子自己不高興也使別人不高興。

60 、He describes himself as a doctor.───他自稱(chēng)是醫生。

61 、He bounced into the room with a springy step.───他以輕快的跑步跳進(jìn)房間。

62 、The company declared a large dividend at the end of the year.───公司在年底宣布分發(fā)高額股息。

63 、That is not, properly speaking, a dictionary, but a grammar.───嚴格說(shuō)來(lái); 那不是一本詞典，而是一本語(yǔ)法書(shū)。

64 、He has a knack of falling out with everyone.───他有個(gè)怪癖，總是和每個(gè)人吵架。

65 、He is always raising a stink about this, that or the other thing.───他總是為了這個(gè)、那個(gè)的大吵大鬧，什麼事都有得吵，有得鬧。

66 、He judged the distance to a nicety.───他判斷距離很正確。

67 、His strength in a crisis is an ace in the hole.───臨危不懼是他的看家本領(lǐng)。

68 、It took me quite a while to fill out the questionnaire.───填寫(xiě)那份問(wèn)卷花了我好長(cháng)一段時(shí)間。

69 、It's natural to slack2 off towards the end of a hard day's work.───一天緊張工作快結束的時(shí)候有些放松是自然的。

70 、He is on a lone fun run, nothing to do with the race.───他自己跑著(zhù)玩的，和競賽無(wú)關(guān)。

71 、A new upsurge in construction is in the making.───一個(gè)建設的新高潮正在興起。

72 、He looks a suspicious character.───他像個(gè)可疑的人。

73 、As a matter of fact, I've never been there before.───事實(shí)上我從未到過(guò)那兒。

74 、We must settle on a place to meet.───咱們得把見(jiàn)面的地點(diǎn)定下來(lái)。

75 、I was paging through a magazine when he came in.───他進(jìn)來(lái)時(shí)我在翻閱一本雜志。

76 、He's such a good swimmer that he makes me look sick.───他游得這么好，真叫我相形見(jiàn)絀。

77 、He tried to put a bold face on his failure.───他對自己的失敗裝出一副滿(mǎn)不在乎的樣子。

78 、He cooked the pasta in a large pan of boiling water.───他用一大鍋開(kāi)水煮義大利面食。

79 、She is pounding out a new rune on the piano.───他正在鋼琴上彈奏一支新曲。

80 、A bright red welt rose on his arm.───他的手臂上起了明顯的條狀紅腫。

請問(wèn)我們在畫(huà)圖的時(shí)候出現的“A＇”是什么意思？

A,B,C,D級別曲面區分是指的外觀(guān)等級要求吧！從3D上看確實(shí)看不到這些東西，但是需要在工程圖紙(2D)里面進(jìn)行文字標示，這樣加工的師傅才能根據外觀(guān)等級來(lái)執行合適的加工工藝。一般說(shuō)來(lái)A級別最高，A級別外觀(guān)面要求最低限度的瑕疵(包括輕微劃傷，凸/凹點(diǎn)，臟污等)，D級面要求最低。一般D級面都是用戶(hù)無(wú)法直接用肉眼看到的面(比如殼體內部等)。

曲面是否OK，這個(gè)根據你圖紙的制定標準有關(guān)，3D只是一個(gè)理論上的模型吧。

拼音a帶聲調的讀法