fruitlessly

基本解释

A handful of congressmen have called (fruitlessly) for him to be fired.
少数议员（徒劳的）要求他下岗。
In a statement, the police insisted that they had searched fruitlessly for Mr. Yang, then told his wife he should turn himself in.
而当地警方的一份声明称，他们没有找到杨家勤，警方告诉他妻子，让她丈夫投案自首。
After years of waiting fruitlessly for the housing market to cool, Zhu and Jia decided to get married this year, prodded by their friends and parents and conscious of passing time.
经过多年无果的等待后，房产市场依然没有冷却，在亲朋好友的还有时间的刺激下，朱先生和贾小姐终于决定今年结婚。

Ayatollah Ali Khamenei, the supreme leader, called fruitlessly on all factions to end their feuding.
ECONOMIST: Resolution of sorts
Since then, explorers and geographers have fruitlessly sought to identify Thule based on these scant ancient references.
FORBES
Utilities had spent decades fruitlessly attempting ways to provide data to homes and businesses over their ubiquitous wires.
FORBES: Tilting at power lines