adj.伤脑筋的;
例句:
Setting very low speeds in a wind tunnel is always a vexatious problem.
在风洞中调出低风速来始终是一个麻烦问题.
In fact you are aware that this is your somewhat vexatious.
事实上你也清楚,这次是你有点无理取闹.
I face the vexatious, you no longer just smile.
面对我的无理取闹, 你不再只是笑笑.