Counterpiston
n. 逆活塞
🗣️ 情景例句
Practice tenses as much as possible.
操练各种时态。
My cousin is a member of a flying club, He seem private flying.
我的表兄是一个飞行俱乐部成员，他似乎很喜欢飞行。
Then we played some games.
接着我们做游戏。