ineffectually
adv. 无益地；无效地
例句
Her voice trailed off ineffectually.
她的声音渐渐微弱得听不见了。
《柯林斯英汉双解大词典》
Her love was a fire playing ineffectually over a rock of basalt.
她的爱，如同一团火，徒劳地烧炼着一块玄武岩石。
It would compete ineffectually within the market if one undertaking relies on its own resources alone.
如果一个企业只依赖自身的资源，那么这个市场将会完完全全的无效率。
