Dag
[化] 滑料石墨灰
🗣️ 情景例句
He's going to be working with you for a while.
他将与你一起工作一段时间。
Who is going to throw stones?
谁在扔石头？
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。