He's always on the qui vive for a business opportunity.

他始终密切关注商机。

《牛津词典》

Men and women are very different. ("Vive la differance" as the French observe.)

男人和女人非常不同。

youdao

Men and women are very different. ("Vive la differance" as the French observe.)

男人和女人非常不同。

youdao