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- It is necessary that he be sent there at once. 有必要马上派他到那里去。
- Don't hesitate about that. Do it at once. 对於那件事不要再犹豫了。马上去做吧。
- Don't try to do everything at once; take it a bit at a time. 不要什麽事情都一块儿干，要一次做一点儿。
- If you don't pay up at once, we'll see you in court! 如果你不立即付清,我们就法庭上见!
- Be pleased to do sth They are pleased at the good news. 听到这个好消息,他们非常高兴。
- What's more notable is that sb. use sth. at sw. to do sth. 更值得注意的是某人在某地使用某物做了某事.
- May I ask a favour of you (ie ask you to do sth for me)? 请您帮个忙行吗?
- Such evil practice cannot be swept away at once. 这种坏事不是一下能扫除干净的。
- The teacher asked the pupils not to speak at once. 老师叫学生们不要同时说话。
- At once he slew him and set Io free. 他立刻杀死了阿尔戈斯，放掉了伊俄。
- Take it into one's head to do sth. 突然决定做某事，心血来潮
- Go at once, or I will unleash my dog on you! 立刻走，要不我就放我的狗咬你！
- You will jolly well have to do sth. 你非得去做某事。
- The film is at once humorous and moving. 这部电影既幽默又动人。
- We should not try to accomplish two tasks at once. 我们不能指望同时完成两件工作。
- Go beyond one's duty in doing sth. 超越职权范围做某事
- It is better to do sth late than never. 迟做总比不做好。
- I tell you to stop talking at once. 我叫你们立刻停止说话。
- Joking aside, we really must do sth. 说笑归说笑，我们真得做点事了。
- She fell in with my idea at once. 她立即同意了我的意见。
