Instroke
排气行程, 压缩行程, 内向冲程
🗣️ 情景例句
Considering the friendly relation between us,
鉴于我们之间的友好关系，
A bird in the hand is worth two in the bush.
双鸟在林不如一鸟在手。
Where there's a will,there's a way.
有志者事竟成。