The drugs work well at first but gradually lose their effectiveness.这些药的效果起初非常好,但后来逐渐失效.To assert this is to denigrate the effectiveness of the police.坚持这一点就是贬低警方的办事能力.Bad diction marred the effectiveness of his speech.措...

adv.无效地，不起作用地，无能力地...

She had effectively shut him out by refusing to listen.她拒不听他说话，并以此有效地将他排除在外。The management tries to produce the magazine as cost-effectively as possible.管理层试图尽可能地让杂志盈利。Services need to be more effectively organised than ...

effectiveness的音标：effectiveness的英式发音音标为：[ɪˌfek'tɪvnɪs]effectiveness的美式发音音标为：[ə'fɛktɪvnɪs]...

adv.有效地，实际上，事实上...