Ya
辅助 Assistantabbr. 年轻人（young adult）；偏航轴（yaw axis）
🗣️ 情景例句
instead of redesigning the entire system.
而不必重新设计整套系统。
Those that make the best use of their time have none to spare.
能充分利用时间的人不会有时间多馀。
If we could actually see the path described by a particle,such as a sand grain in the rock,
假如我们真能看到的运动轨迹，诸如岩石中一个沙粒分子