Niggliite
碲铂矿
🗣️ 情景例句
If you quit smoking now, you'll feel better in no time.
如果你现在戒烟的话，你很快就会感觉好多了。
In college I majored in science.What was your major?
在学院我主修了自然科学，你主修了什么？
If you think it is necessary.
如果你认为有这必要的话。