那位运动员(麻烦的)膝伤让他缺席了整个赛季。

The athlete's ___troublesome knee injury kept him out for the entire season.

在国外生活有时会让你遇到从未预料到的(麻烦的)情况。

Living abroad can sometimes expose you to ___troublesome situations you never expected.

他们(麻烦的)少年儿子一直考试不及格。

Their ___troublesome teenage son consistently failed his classes.