Backscattered
反(背)向散射的
🗣️ 情景例句
The speed limit here is 60 miles an hour.
这儿限速为每小时六十英里。
He was at a loss for words.
他不知道该说什么好。
Just let me know if you want to bring anyone else.
如果你要带别人来，请随时通知我。