a fly in the ointment的用法和样例：
- That mildew stain is really a fly in the ointment for the painting.
- The only fly in the ointment is the bad weather.
- I enjoyed the picnic very much. The only fly in the ointment was the rude bus-driver who shouted at us.
- I like the house, but there's a fly in the ointment: I have to commute so far to work.
- Mobile phones are quite popular nowadays, but they ring at any time in the public areas. It is a fly in the ointment.
a fly in the ointment的相关资料：