Chie
[机械]小型多级卧式变频泵
🗣️ 情景例句
The whole house needs re-painting.
整个房间需要重新粉刷。
Last year I studied sociology and political science in school.
去年，我在学校攻读了社会学和政治学课程。
No, I didn't.
不，我不知道。