have yet to be improved

• 有待改进

have yet to be improved的用法和样例：

例句

1. His work leaves much to be desired.
   他的工作还有许多有待改进之处。
2. Although the validation control is a very widespread idiom, most such controls can be improved.
   虽然确认控件是非常广泛的习惯用法，但还有很多有待改进的地方。