Treadlemill
脚踏传动式磨; 脚踏传动式试验台
🗣️ 情景例句
Thank you, Susan.
谢谢你， Susan。
There's no such thing as a free lunch.
天下没有白吃的午餐。
becomes so worn and unreliable that it eventually is not worth mending.
磨损太厉害，老得一点儿也不准了，最终会不值得修理了。