Euchlorin
碱铜矾
🗣️ 情景例句
In two or three months, I'll have an advance on my book
两到三个月后 我能得到我那本书的预付款
The years teach much which the days never know.
学问集年而成，而每日不自知也。
How much is the pen?
这支笔多少钱？