Trackballs
(trackball 的复数) n. 追踪球；轨迹球
🗣️ 情景例句
if you can't make the payments.
如果你们不能还钱
In secondary school, children study mathmatic、phsicas and chemistry.
中学的小孩会读到数学、物理和化学。
If you let one drop of his blood fall, you will lose all your land and all your money.
要是你让他身上的血流下一滴，你将失去你所有的土地和财产。