Dopplerizer
多普勒效应器
🗣️ 情景例句
I'd better hit the books.
我最好勤奋学习。
He's a student,too.
他也是学生。
There's an old teapot over there. Isn't it beautiful! said Ann.
“那儿有一个旧茶壶。它不美丽吗？” 安说