Chalcomenite
蓝硒铜矿
🗣️ 情景例句
My family can survive on the produce from our hobby farm.
业余时间我们一家人在小农场的劳动成果足够一家人维持生计了。
An oak is not felled at one stroke.
万事不能一蹴而就。
I get to school at about 7:30 every day.
我每天七点半到校。