🧩 词语组成解析
a. 氮的, 含氮的, 硝石的
🗣️ 情景例句
We have several package tours you may choose, from ten days to three weeks in Europe.
我们有几套欧洲旅游计划选择，时间从10天到3个星期。
He that would eat the fruit must climb the tree.
不劳无获。
Haven't you met yet?
你们还没见面吗？