Cobalt crust
[化] 钴华; 八水合砷酸钴
🧩 词语组成解析
n. 钴, 钴类颜料\\n[化] 钴Co
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
Oh, well, that would be very nice.
噢， 好吧， 那倒很好。
Sorry, sir. But it's our graduation day.
对不起，不过，今天是毕业的日子嘛。
If there had not been a hard layer of rock beneath the soil, they would have completed the job in a few hours.
如果不是因为土壤下面有一层坚硬的岩石，他们的营救工作仅用几个小时就可以完成了。