出国旅行时，最好有足够的判断力去学习当地语言的几句基本用语。

When travelling abroad, it's wise to have the ___sense to learn a few basic phrases in the local language.

现在和他争论这件事毫无意义；他已经下定决心了。

There's no ___sense in arguing with him about it now; he's already made up his mind.

他很早就投资了这家公司，显示出了出色的商业头脑。

He showed great business ___sense by investing in the company early on.