My weakness is I easily fall in love.

我的缺点就是很容易陷入爱情的深渊。

youdao

One of my weakness is smoking too much.

我的缺点之一是抽烟太多。

youdao

You know, one of my weakness is a bad temper.

迩知道的，我的缺点之一就是脾气坏。

youdao

My weakness is for recipes with startling procedures, like cooking chicken in watermelon or Colman Andrews's idea of boiling pasta in a bottle of wine.

WSJ: The Rules of Recipe Attraction

But sales and marketing is also where my biggest weakness lies: I can do it, but my experience in hotel sales and marketing is not altogether conventional.

FORBES: What Does It Take To Start A Hotel?

"My biggest weakness in life is that I can't say no, " says Branson, 49.

FORBES: Red Baron