Backventing
背部通气
🗣️ 情景例句
There's no end to the paperwork I have on my desk.
我桌上的工作永远没个完。
He is the top condition.
他的身体情况处在巅峰状态。
it would be up and down, to and for and from side to side.
呈现出上上下下、来来回回、左左右右3种性质的运动。