troublesome

The old car had a troublesome engine that would often stall in cold weather.

(Chinese) 那辆旧车的发动机很让人头疼，寒冷天气里经常熄火。

The persistent leak in the roof has become a troublesome issue for the homeowners.

(Chinese) 屋顶持续的漏水已成为房主们一个令人烦恼的问题。