foul touch

例句：

1. 1. The doctor advised him to wash his hands before touching the patient's body.
   医生建议他在接触病人之前洗手。
2. 2.The child was disgusted by the foul touch of the stranger.
   孩子对陌生人的肮脏触摸感到厌恶。
3. 3. The policeman warned everyone not to make any foul touches on the crime scene.
   警察警告大家不要在犯罪现场做出任何不洁的触摸。