Lehmannite
铬铅矿
🗣️ 情景例句
Richard and I will put them into the envelopes.
我和Richard把它们放进信封。
Old acquaintance will soon be remembered.
故人一见便相亲。
A moment later, the Class 4 runner fell and hurt his leg, but he quickly got up and went on running.
过了一会儿，4班的运动员摔倒了，伤了腿，但是他很快爬起来，继续往前跑。