And yet we can fall asleep while driving a car.

但我们却不能在开车时睡觉。

youdao

We saw a boy fall into the river while going through the bridge.

当我们过桥的时候，我们看见一个男孩儿掉进河里。

youdao

We saw a boy fall into the river while going through the bridge.

当我们过桥的时候，我们看见一个男孩儿掉进河里。

youdao