Lengenbachite
辉砷银铅矿
🗣️ 情景例句
You'll sleep sounder for it.
你会因此而睡得更加酣畅。
I was born anAmerican; I live an American; I shall die an American.
我生下来是美国人，活着是美国人，死时也是美国人。
Instruments have been devised and can be so placed that all three elements can be recorded in different graphs.
已经设计出了一些仪器，它按照一定的安放方式就可测绘出这三种运动的曲线图。