Have you ever heard a sentence

一句话───in a word;听───hear

In a word, you found out something you had not known before.───一句话, 你弄懂你以前不明白的事.

"Shouldn't he be given the leading role?" — "In a word — No."───“难道不该让他当主角吗？”——“一句话——不行。”

Victor, in a word, got increasingly fed up.───总而言之，维克多越来越厌倦了。

None of your business. Don't put in a word.───没你的事, 别答碴儿.

He threw in a word or two from time to time.───他不时地插上一两句话.

Don't worry , though : I'll put in a word for her!───不要怕! 我去讨情.

In a word, this government isn't fit to rule.───总之，这届政府不胜任执政之事。

I cannot resist slipping in a word of advice.───我忍不住想插上一句建议。