Jackshaft
n. [汽] 中间动轴
🗣️ 情景例句
I've been there several times.
我到那儿去过好几次。
She began playing the violin when she was nine.
九岁的时候，她开始拉小提琴。
There it is!It's in front of your!
那不是么！ 就在你眼前。