seal

释义

n. 印章, 封条, 海豹, 海豹皮, 火漆, 封蜡, 玺, 保证, 批准, 象征, 标志\nvt. 封闭, 盖印, 盖章\nvi. 猎海豹 seal of 证明；保证 mechanical seal [机]机械密封 oil seal 油封

例句

The seal on the box broke when it fell from its hiding-place.

盒子从隐藏处掉下时上面的封口破了。