touchy

a. 易怒的,难以取悦的,过敏的

She's so touchy about being able to look after herself that your offer of help may easily be taken amiss.

她对于自己的自理能力很敏感，你要是主动帮助她，她可能容易见怪。

The mines are touchy as hell.

地雷非常灵敏，一有触动便会爆炸。