The dog had a thorn in its pad.这只狗的爪垫上扎了一根刺。
The thorns have caught our clothing.荆棘挂住了我们的衣服。
I was sitting on the thorns while waiting for the outcome.等待结果时我如坐针毡。

［派生词］ thornless adj. 无刺的‖thornlike adj. 像刺一样的‖thorny adj. 多刺的；棘手的；多困难的