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。
The medicine was ineffectual against the new strain of the virus.
这种药物对病毒的新变种无效。
02
无效的, 无能的
(of a person) not having the power, authority, or confidence to handle a situation
例子
As a leader, he was ineffectual and failed to inspire his team.
作为领导者，他无能且未能激励他的团队。
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
