all at once基本解释
同时； 一起； 突然； 忽然
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adv
1. without warning
e.g. all at once, he started shouting
Synonym: all of a sudden
2. all at the same time
e.g. Let's say `Yes!' all at once
Synonym: all together
1. all at once
1. 突然,同时：ahead of time 提前 | all at once 突然,同时 | all but 几乎;除了...都
2. 突然;同时;一起：and so on 等等 . | all at once 突然;同时;一起 . | once for all 一劳永逸地 .
3. 突然：14.ahead of 在......前 | 15.all at once 突然 | 16.all but 几乎,差一点,除了......都
4. 一下子：all at once一下子 | as a matter of fact事实上 | all manner of各种各样的
在机场
A：Good morning, sir, where are you going?
先生，早晨好，您要去哪儿？
B：I’m going to England by flight B.E.987.
我乘英国国际航空公司987 航班去英国。
A：When is your flight?
您什么时候的飞机？
all at once的近义词
B：!0:00 a.m. When am I supposed to check in?
上午10 点钟，我应什么时候办理登机手续？
A：We are checking in. May I have your ticket? And your health certificate and your luggage, please.
我们正在办理。请出示机票及您的健康证明书，还有您的行李。
B：Here you are.
给您。
all at once
A：Are you keeping this small bags as carry-on luggage, sir?
先生，这个小包您带在身上吗？
B：Yes.
是的。
A：You must weight that as well.
也得过磅。
B：All right.
好吧。
A：Your luggage is two pounds over, I am afraid there’ll be an excess luggage charge, sir.
先生，您的行李超重2 磅，您得付超重费了。
B：How much must I pay?
我需付多少钱？
A：It’s 10 yuan.
应该是10 元。
B：Here you are.
给您。
all at once
A：This your luggage check (ticket) which you must show when you disembark at your destnation, and here is your boarding pass and your ticket.
这是您的行礼单，到达目的地的时候，您必须出示这张单子，这是您的登机牌和机票。
B：Thanks.
谢谢。
A：Now please wait until your flight is called. There are about twenty-five minutes to go.
您等着您的航班呼叫好吗？大约还有25 分钟就要呼叫了。
B：I’m a little nervous. I have never flown before.
我有一点紧张，我从未坐过飞机。
A：There is nothing at all to worry about. Once you’re in the air, it’s just like sitting in your own living room. It’s going to be a very pleasant flight.
没有什么可担心的。一升到空中你就像坐在自己家中客厅一样。这将是一次非常愉快的旅行。
