Impulsively he reached out and took her hand.

他一时冲动便伸手握住她的手。

He studied her face for a moment, then said impulsively: "Let's get married."

他仔细端详了一会她的脸，然后冲动地说：“我们结婚吧。”

These children tend to behave impulsively.

这些孩子的行为往往很冲动。

He often ACTS impulsively and later regrets it.

他常常行事鲁莽，事后又后悔。

Impulsively, she had married a man she thought she loved.

冲动之下，她嫁给了一位她自以为爱的男人。