Bioburden
生物负载
🗣️ 情景例句
I'd like to help you, but...
我很想帮助你，但是…
Bad workmen often blame their tools.
拙匠常怪工具差。
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