Cacheutaite
硒铜铅矿
🗣️ 情景例句
that I never could have done this book
我不可能完成这本书
Do not count your chickens before they are hatched.
鸡蛋还未孵，先别数鸡雏；莫过早乐观。
OK. Could you take it to the classroom?
好，那你能搬到教室里吗？