Earth's crust
地壳
🧩 词语组成解析
crust
[krʌst]
n. 面包皮;外壳;硬外皮;地壳;
vt. 用外皮覆盖;在…上结硬皮;生痂儿;
vi. 结成外壳;结硬皮;
🗣️ 情景例句
then I've got to do some thinking about
那么我就必须考虑考虑
What were you doing at about 4 o'clock yesterday afternoon?
你昨天下午在大约4点钟正在做什么？
Sometimes ago, the United States Navy, for instance,
例如，美国海军前些时候