crust
krʌst
基本解释
n. 外壳, 坚硬外皮, 面包皮
vt. 盖以硬皮
vi. 结硬皮
英文释义
n. the outer layer of the Earth
n. a hard outer layer that covers something
n. the trait of being rude and impertinent; inclined to take liberties
v. form a crust or form into a crust
词形变化
上一个单词：crusoe
下一个单词：crust forming agent