at once 是什么时态

at once是一般将来时。

at：prep. 在(某时间或时刻); 在(学习或工作地点); 在(某处)。

once：once：conj. 一旦; 一…就; 当…时候。

扩展资料

A computer can perform many tasks at once.

电脑能同时做多项工作。

She fell in with my idea at once.

她立刻同意了我的主意。

We have several projects all on the boil at once.

我们热火朝天地同时上马了几个项目。

It is a physical impossibility to be in two places at once.

同时身处两地在自然法则上是不可能的'。

He couldnt reasonably be expected to pay back the loan all at once.

公平合理地讲，不可能指望他一下子归还全部借款。

The award-winning novelist often has three or four books on the go at once.

那位获奖小说家经常是三四部小说同时写的。