Xenolite
重夕线石
🗣️ 情景例句
After studying an hour, I finally got the hang of the lesson.
我学习了一个小时，终于理解了这一课的要点。
I know the boy whose father is a policeman.
我知道那个男孩的父亲是警察。
They all went up some narrow steps into a large room.
他们全都登上这些狭窄的台阶，接着进入一个大房间。