Your time could be usefully employed in attending night classes.
你的时间可以被有效地利用来上夜课。
《柯林斯英汉双解大词典》
The money could be more usefully spent on new equipment.
这笔钱用来购置新设备可能会更有价值。
《牛津词典》
The process can usefully be thought of in terms of the gradual emergence of two somewhat separate features: the self as a subject, and the self as an object.
