Refringence
折射; 折射系数
🗣️ 情景例句
He doesn't want anybody picking him up.
他不愿意让别人接他。
This product is doing very well in foreign countries.
这种产品在国外很畅销。
when a significant number of people are living permanently in space.
如果有相当数量的人永久性地住在太空，