Impulsively he reached out and took her hand.

他一时冲动便伸手握住她的手。

《牛津词典》

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。”

《柯林斯英汉双解大词典》

Is that people shop more impulsively and therefore make bad decisions when online?

是人们在网上购物时更冲动，因此做出了错误的决定吗？

youdao

It wasn't exactly destiny, but he was much more likely to be impulsively violent than not.

WSJ: Neurocriminology: Inside the Criminal Mind

Even so, countries such as Ecuador have impulsively and foolishly banned imports of U.S. pork products.

CNN: Commentary: It's time to end flu hysteria

When the consideration phase and decision phase were too close together, this caused them to act impulsively.

FORBES: Intelligent Investing