leave something to be desired
US /liːv ˈsʌmθɪŋ tu bi dɪˈzaɪərd/
UK /liːv ˈsʌmθɪŋ tu bi dɪˈzaɪərd/

1.
有待改进, 不尽如人意
to be unsatisfactory or not as good as expected
:
•
The quality of the food at the restaurant left something to be desired.
这家餐厅的食物质量有待改进。
•
His performance in the play left something to be desired.
他在剧中的表现有待改进。