Her quick action saved the child's life.

她行动迅速，救了小孩的命。

Her quick action saved his life.

她动作迅捷救了他一条命。

My quick action earned me his praise.

我的行动敏捷，受到他的赞扬。

My quick action earned me his praise.

我行动迅速，博得了他的赞扬。

The occasion calls for quick action.

情况需要采取紧急行动。