Gerotor
内齿轮油泵
🗣️ 情景例句
I had a nice evening.
让我过了一个愉快的夜晚。
I'm not kidding, I love you!
我是认真的，我爱你！
On Christmas Day, the man still had his right leg in plaster.
圣诞节那天，他的右腿还上着石膏，