Instroke
排气行程, 压缩行程, 内向冲程
🗣️ 情景例句
Hi, I'm just calling to see if you got home s afely last night.
你好，我打电话来确定一下你是否已经安全到家。
Do I need to be hospitalized?
我需要住院吗？
Look, Gary!That policeman's waving to you.He wants you to stop.
瞧，加里！那个警察正朝你挥手呢。他要你停下来。