Refringency
折射系数
🗣️ 情景例句
I don't feel that industry should be dictated to by the government.
我觉得那个行业不应该由政府来支配。
There was a big crowd and we had difficulty getting a taxi.
外面有一大群人并我们有很困难招一辆出租车。
I'm sure we will.
我相信我们会的。