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单词	efficacious
释义	ef·fi·ca·cious (ĕf′ĭ-kāshəs) adj. Producing or capable of producing a desired effect. See Synonyms at effective. [From Latin efficāx, efficāc-, from efficere, to effect; see EFFECT.] ef′fi·cacious·ly adv. ef′fi·cacious·ness n.
随便看	highway highwayman highway robber highway robbery highwaywoman high wire high-wire high-wire act high-wrought HIH hi hat hi-hat cymbals hi-hat cymbals hijab hijack hijacker hijiki hijinks hijinks hike hike out hiker hila Hilaire (Hilaire Germain) Edgar

英语词典包含135693条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。