ineffectual
例子
Their ineffectual efforts to stop the leak only made the problem worse.
他们为阻止泄漏所做的无效努力只会使问题变得更糟。
02
无效的, 无能的
(of a person) not having the power, authority, or confidence to handle a situation
例子
Her protests were ineffectual and went ignored by the committee.
她的抗议无效，被委员会忽视了。
03
无效的, 无效果的
producing no result or effect
词汇树
ineffectual
effectual
effect
