thorn

/θɔrn/

something that causes irritation and annoyance

中文释义：刺；荆棘

She pricked her finger on a rose thorn while gardening.

她在园艺时被玫瑰刺扎伤了手指。

The thorn in his side was the constant criticism from his boss.

让他烦恼的是老板不断的批评。