Trackballs
(trackball 的复数) n. 追踪球；轨迹球
🗣️ 情景例句
I do have an answer, Philip.
我确实有一个答案， Philip。
It's an incredible story to me.
这对我来说是一个无法相信的传闻。
The tour should last about an hour and a half.
这次参观大概需要一个半小时。