Refusion
[医] [血]回输法
🗣️ 情景例句
What's happening in Singapore recently?
近来新加坡的情况怎样？
Pupil. He is studying.
学生。正在学习。
Oh! Is that a ball? Aren't all balls round?
噢，那是个球吗？难道所有的球不都是圆的吗？