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1·The place at once enraptured me.

这个地方立刻把我迷住了。《柯林斯英汉双解大词典》

2·If necessary I can come at once.

如果有必要，我可以马上来。《牛津词典》

3·'Come here at once!' she ordered.

“马上过来！”她命令道。《牛津词典》

4·She fell in with my idea at once.

她立刻同意了我的主意。《牛津词典》

5·The boys all began to talk at once.

男孩们都马上开始说话了。《柯林斯英汉双解大词典》

6·I have to go at once.

我得马上走。《柯林斯英汉双解大词典》

7·The receptionist recognized him at once.

那名接待员马上认出了他。《柯林斯英汉双解大词典》

8·He started at once to compose a reply to Anna.

他立刻开始给安娜写回信。《柯林斯英汉双解大词典》

9·She paid me in dribs and drabs, not all at once.

她一点一点地付给我钱，而不是一次付清。《牛津词典》

10·He took off at once and headed back to the motel.

他出人意料地立刻就离开了，然后回到了那家汽车旅馆。《柯林斯英汉双解大词典》