Refringency
折射系数
🗣️ 情景例句
when you called me.
当你打电话给我的时候。
When it started raining, I was playing outside.
当雨开始下的时候，我在外面玩。
the bottle, the box, and the jar are almost always granted them.
结果就是把瓶药、盒药、罐药开给看病的人而完事大吉。