Refringency
折射系数
🗣️ 情景例句
but, well, we've still got some time for a cup of coffee.
不过， 我们还有喝杯咖啡的时间。
The best teachers of humanity are the lives of great men.
启迪人性最好的导师是伟大人物的生活。
When he had killed the guard, the prisoner of war quickly dragged him into the bushes.
那个战俘杀死卫兵以后，迅速地把尸体拖进了灌木丛。