Refringence
折射; 折射系数
🗣️ 情景例句
to save money for my college tuition.
存钱准备我的大学学费。
How many more minutes will it take for the train to arrive?
火车还要多少分钟就要到达呢？
In the middle of the night, two boys woke up and began shouting.
午夜前后，有两个孩子醒了，大声叫了起来。