Rescattering
二次散射; 重散射
🗣️ 情景例句
Tomorrow at five o'clock at the Biltmore.
明天五点钟， 在Biltmore饭店。
You can't take it back!
说话算话！
and mechanical systems like a wound watch, or the sun,
像上紧发条的手表那样的机械装置，或太阳，