The human most precious thing is the life, the life belongs to us only then one time.

人最宝贵的是生命。生命属于人只有一次。

youdao

Pure love perhaps only then one time, but likes having one time not necessarily really.

纯纯的爱也许只有一次，可是真爱不一定只有一次。

youdao

The effect of this is that if an event handler implements a request-response operation, then only one instance of such an event handler may be active at any point in time.

此规定的结果是，如果某个事件处理程序实现了一个请求-响应操作，则在任何时间点，只能有一个此类事件处理程序的实例处于活动状态。

youdao

Because, as I said, you can only drive one car at a time and if you've got ten of them in the garage, then it doesn't really do you much good.

正如我说的,你只能一次开一辆车,但如果你的车库里有十辆,它实际上并不会给你带来更多的好处

耶鲁公开课 - 金融市场课程节选

But his colleagues have warned Mr Ashdown that he can now take only one step at a time, and even then only after he has consulted first with his front bench.

ECONOMIST: Why Paddy will miss Peter most

Then-Treasury chief Robert Rubin declared that this was a one-time-only event and that the U.S. and the IMF had not set a precedent.

FORBES: Fact and Comment

In practice then, only one date looks auspicious for a referendum: the spring of 2003, by which time the euro will (presumably) have settled in as a physical currency.

ECONOMIST: Britain and the euro