2N-VAR 荆棘;带刺的树;带刺小灌木 A thorn or a thorn bush or a thorn tree is a bush or tree which has a lot of thorns on it. 荆棘;带刺的树;带刺小灌木
...the shade of a thorn bush.
一丛荆棘下的阴凉
...the thorn and bramble thickets.
荆棘密布的灌木丛
3PHRASE 肉中刺;长期困扰的问题 If you describe someone or something as a thorn in your side or a thorn in your flesh, you mean that they are a continuous problem to you or annoy you. 肉中刺;长期困扰的问题
She's a real thorn in his side.
她真叫他头疼。
The Party was a thorn in the flesh of his coalition.