等到钟敲第一下时就是9点整。

At the first stroke it will be 9 o'clock exactly.

《牛津词典》

当第一个客户来敲你的门时，你赶紧打开音响播放贝多芬的第五交响曲吧，命运来敲你的门了。

When the first client knock at your door, you immediately open the audio player you Beethoven's Fifth Symphony, the destiny you knock the door.

youdao

敲任意键，然后重新输入第一个字符。

Press any key and then re-type the first character.

youdao