禁食

例句：

1. 1.He has been fasting for 30 days to lose weight.
   他为了减肥已经禁食了30天。
2. 2.The fasting period is crucial for the body's recovery.
   禁食期对于身体的恢复至关重要。
3. 3.During the fasting period, one should avoid eating or drinking anything.
   在禁食期间，应避免进食或饮水。