Rescattering
二次散射; 重散射
🗣️ 情景例句
A rolling stone gathers no moss.
滚石不生苔，转业不聚财。
The offer is made without engagement. All orders will be subject to our written acceptance.
此报盘没有约束力，所有定单以我方书面接受为准。
Do you offer any quantity discounts?
大量购买有折扣吗？