沉着地

The fighters steadily dug themselves in.

战士们沉着地挖掘战壕。

He was comparatively calm and concentrated in judging how to defeat his opponent.

他相对冷静沉着,聚精会神地判断如何打败对手。

Snape, however, looked calmly back into Voldemort's face and,  after a moment or two, Voldemort's lipless mouth curved into something like a smile.

普却沉着地回视着伏地魔，过了一会儿，伏地魔那没有唇弯曲了一下，像是在笑。