My dead calm surprised me.

我的平静让我很意外。

It was a dead calm that preceded the storm.

那是暴风雨前的平静。

That is always going to be tricky in anything other than a dead calm.

这种作业除非海面风平浪静总是很棘手的。

The flowing river showed minor ripples in the reflection, even though the wind was dead calm.

即使在那风平浪静的环境里，流淌的河流中，也会泛起了柔和的涟漪。

It was uncanny, this rising sea in a dead calm, and their voices unconsciously sank lower.

海面在从容不迫地上涨，使得他们毛骨悚然，他们不由自主地压低了嗓门。