Propylite
n. [地]青磐岩
🗣️ 情景例句
Kids today have too much freedom, it's not like the old days.
现在的小孩太自由了，不像以前。
We'll start with an orientation video. It runs about 15 minutes.
我们将从一个电视简报开始，大概放15分钟。
That's really something.
那真是了不起！