C U 1.面包皮; 糕饼等的酥皮 hard outer surface of a loaf of bread; pastry covering of a pie, tart, etc.
C U 2. (泥土、雪等)硬的外层 a hard outer covering, as of earth or snow
词汇搭配
形容词+～
dry crust 干面包皮
名词+～
earth crust 地壳
rice crusts 锅巴
～+介词
crust of ice 冰层
句型例句
The crust of the bread is burnt.这块面包的外皮烤焦了。
The crust on the snow was thick enough for us to walk on it.冻结的雪面足够厚,我们可以在上面行走。
She had the crust to ask for a raise.她竟有脸要求加薪。
