n. 面包皮
n. 〔馅饼或比萨饼等的〕酥皮
n. 〔某物的〕硬薄外层[表面]
n. 〔地球的〕地壳
a thin crust of ice 一层薄冰
A hard gray crust had formed on the bottom of the tea kettle. 茶壶底部结了一层灰色的垢。
Bake until the crust is golden. 把糕饼烤至外皮呈金黄色。
BrE /əˌbriːviˈeɪʃn/
NAmE /əˌbriːviˈeɪʃn/