Tautorotation
变旋(光), 变异偏振
🗣️ 情景例句
What are you up to?
你在忙些什么？
One woman, in Peru, was saved from an earthquake by lying between two mattresses.
秘鲁的一位妇女，躲在垫子之间从地震中死里逃生。
Excuse me, Jim. Who's that man?
吉姆，那个人是谁？