Pipefriction
[机] 管摩擦
🗣️ 情景例句
No. I really don't know how to go about it.
没有。我真不知道如何填。
I wish I were running across an open field.
我真希望在原野奔跑。
I'm good at freestyle and breast stroke.
我擅长自由泳和蛙泳。