他在我们家是挑大梁的，所有的生活开销都由他提供。

He's the big shoulders in our family who earns all the living.

虽然北约士兵国籍未明，但是大家都知道米国大哥在此区域挑大梁。

Although the nationality of the NATO soldiers killed was not confirmed, Americans were known to be carrying out most of operations in the area.

我踌躇满志地进入单位，却又一次失望地发现，这个世界仿佛一直是男人的，许多单位当领导的、挑大梁的，大多是男人。

I'm full of ambitions into the unit, but again a disappointed to find, the world is like a man who is always the many units, the leadership of the plays, and when, mostly men.