crud

例句：

1. 1. 泥泞，烂泥；2.
   常用于比喻
2. 3.
   常用于医学领域
3. 1. The farmer had to dig his way through the crud to reach the crops.
   农民不得不挖过烂泥才能到达庄稼地。
4. 2. The patient was in a lot of pain due to a recent surgery, and the doctor advised him to stay away fromcrud.
   病人因为最近一次手术很痛，医生建议他远离烂泥。
5. 3. The scientist found that some bacteria could survive in the crud, which is whythey are so dangerous.
   科学家发现有些细菌能在烂泥中生存，这就是为什么它们如此危险。