| 例句 |
Kevin made one last futile attempt to persuade Sandra to go with him, then left.凯文最后一次试图劝桑德拉跟他走，但未能奏效，然后便离开了。Buller's actions have been rightly criticized as ineffective.布勒的行动被批评为未能奏效，这一批评很恰当。The Senator's reaction was at best ineffective and at worst irresponsible.参议员的反应从最好的方面看是未能奏效，从最坏的方面看是不负责任。His efforts to save the business were futile.他挽救企业的努力未能奏效。The company has been unsuccessful in its efforts to sway/change public opinion. 那家公司为改变公众看法而付出的努力未能奏效。Their endeavours failed of their effect.他们的努力未能奏效。 |