beg a meal的用法和样例：
- We managed to beg a meal from the cafe owner.
- Please excuse this wretched apology for a meal.
- It was a meal of sorts, but nobody enjoyed it.
- She went to prepare him a meal with her own hands.
- Please whomp up a meal for us; we have to leave in half an hour.
- A part of a meal served as a unit at one time.