Tube cofficients
[电] 管系数
🧩 词语组成解析
🗣️ 情景例句
The whole family decided to spend their holiday in Hawaii.
全家决定到夏威夷度假。
Take care of yourself and don't forget to keep in touch.
多多保重。别忘了保持联系。
Is this case yours?
这箱子是您的吗？