Stigmata nigra
[医] 火药粉黑斑
🧩 词语组成解析
[医] 柱头; 小孔, 眼点; 气孔; 小斑; 特征
[医] 黑质
🗣️ 情景例句
Yeah.
是的。
That can't be.
不可能。
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