Impugned
v. 非难, 指谪( impugn的过去式和过去分词 ); 对…有怀疑
🗣️ 情景例句
about five years ago.
大约五年前。
I'm afraid you will fail.
我怕你会失败。
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