Instroke
排气行程, 压缩行程, 内向冲程
🗣️ 情景例句
His popularity has soared thanks largely to his TV appearances.
由于经常出现在电视上，他的知名度日趋上升。
He was involued with the Mafia.
他和黑手掌有牵连。
Mary is still writing letters. She's been writing letters all day.
马力还在写信，她写了一整天的信。