動詞 foul:

1. hit a foul ball
   同義詞：foul
2. make impure
   同義詞：pollute, foul, contaminate
3. become or cause to become obstructed
   同義詞：clog, choke off, clog up, back up, congest, choke, foul
4. commit a foul; break the rules
   同義詞：foul
5. spot, stain, or pollute
   同義詞：foul, befoul, defile, maculate
6. make unclean
   同義詞：foul
7. become soiled and dirty
   同義詞：foul

1. He was sent off by the referee for persistent fouling.
   他因連續(xù)犯規(guī)被裁判勒令退場。
2. The factories are responsible for fouling up the air for miles around.
   這些工廠造成了很大范圍的空氣污染。