smuts
n. 煤尘；烟尘（smut 的复数形式）
v. 弄黑（smut 的单三形式）
例句
In other smuts the spores form an uncovered mass of black powder.
在另一些黑粉病中孢子形成无覆盖的黑色粉末。
It can be noticed that the track of rotary de-scaling is completely free of smuts and oscillation marks.
可以很明显的看到旋转除锈轨迹完全没有灰尘和震荡痕迹。
Smuts , nonetheless, came to admire and respect von Lettow-Vorbeck for his courage, honor, and his integrity.
虽然如此，斯姆茨却因为福尔贝克的勇气、荣誉和正直对他表示称赞和尊敬。
