Rescattering
二次散射; 重散射
🗣️ 情景例句
She called to say the plane was delayed.
她打电话回来， 告诉我们飞机误点。
The tongue is not made of steel,yet it cuts.
舌头不是钢，一动把人伤。
Sally was very excited because she had never travelled on a train before.
萨莉非常激动，因为她从未乘过火车。