I felt chagrined at the wasted effort.
我为浪费了精力而感到懊恼。
Has missed preschool education this critical period often the wasted effort.
错过了学前教导这一要害期则往往事倍功半。
Thus the expensive malaria control effort had been wasted.
因此，耗资巨大的疟疾防治努力被浪费。
But if the goal was to stimulate debate, the effort has not been wasted.
但是如果目的是为了激起辩论的话，努力就没有白费。
I wasted my time and my effort on this project. The boss rejected it.
我在这个项目浪费了时间和精力。老板否决了。
I wasted my time and my effort on this project. The boss rejected it.
我在这个项目浪费了时间和精力。老板否决了。
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