名詞 wash out:

1. the channel or break produced by erosion of relatively soft soil by water
   同義詞：washout
2. the erosive process of washing away soil or gravel by water (as from a roadway)
   同義詞：washout, wash
3. someone who is unsuccessful
   同義詞：flop, dud, washout

動詞 wash out:

1. prevent or interrupt due to rain
   同義詞：rain out
2. wash free from unwanted substances, such as dirt
3. wear or destroy by the force of water
4. remove by the application of water or other liquid and soap or some other cleaning agent
   同義詞：wash, wash off, wash away
5. deplete of strength or vitality
6. drain off the color in the course of laundering
7. lose color in the process of being washed

1. I am afraid you must wash out this stain.
   恐怕你必須洗掉這個污漬。
2. The match was completely washed out.
   這場比賽遇雨而完全停止了。