Chlorohafnate
氯铪 酸盐
🗣️ 情景例句
Let me help.
我来帮忙。
We all know each other pretty well.
我们都非常了解对方。
(A light year is the distance which light travels at 186,000 miles per second in one year,
一光年是光以每秒186，000英里的速度在一年内走的距离，