a piece of piss

例句：

1. 1.She had to urinate frequently after drinking too much coffee.
   她喝太多咖啡后不得不频繁地排尿。
2. 2. The patient was given a glass of water to drink before the operation.
   在手术前，病人被给了一杯水来喝。
3. 3. He felt embarrassed and asked for a piece of piss to wash his hands.
   他感到尴尬，请求了一杯小便来洗手。