Instroke
排气行程, 压缩行程, 内向冲程
🗣️ 情景例句
He was left in charge of the shop while the manager was away.
经理不在时他负责这个商店。
It's nothing. Don't mention it.
区区小事，何足挂齿。
Just a minute, please. I'm sorry, he's not here right now. Can I ask who's calling?
请稍等。对不起，他现在不在这儿。请问你是哪位？