Sympathicus
交感神经系统
🗣️ 情景例句
No, you needn't do that.
不行呀，你不必这样。
My thesis is due the same week as midterms.
毕业论文截止的日期，和期中考试那一周重复。
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