Crystallographer
检晶器
🗣️ 情景例句
A little further back, Tom.
再往后一点 Tom。
I think that should do it.
我想这样就可以了。
In the beginning they used to carve Chinese characters on stones to record important dates in history.
开始时，他们常把汉字刻在石头上，记载历史上重要的日期。