the fly in the ointment

• 美中不足之处；瑕疵

the fly in the ointment的用法和样例：

例句

1. The defect of the pottery detracts from its beauty.
   这陶器的瑕疵有损它的美。
2. He scrutinized the diamond for flaws.
   他仔细察看钻石有无瑕疵。

词汇搭配

• a fly in the ointment 美中不足之处...