Backscattered
反(背)向散射的
🗣️ 情景例句
He is interested in collecting foreign stamps.
他对收集外国邮票有兴趣。
Mickle power makes many enemies.
权高树敌多。
She watched TV for half an hour after supper. Then she started her homework.
晚饭后她看了半小时电视。然后她开始做家庭作业。