He had been deeply affected by the sudden death of his father-in-law.

岳父的猝死使他十分伤心。

'I hope,' the stranger said, 'that the sudden change of venue did not inconvenience you.'.

那位陌生人说：“我希望突然改变地点不会给您带来不便。”

She started to thank him, but a sudden movement behind him caught her attention.

她正要谢他时，他身后有什么东西突然动了一下吸引了她的注意力。

It was all very sudden.

这一切都太突然了。

All of a sudden she didn't look sleepy any more.

她突然看起来一点都不困了。