相關(guān)單詞近義詞 effective 有效的, useful 有用的, practical 明智的, valuable 貴重的, utility 效用, favorable 有利的, profitable 有益的, advantageous 有利的, durable 耐用持久的, strong 強(qiáng)烈的, hard-wearing [經(jīng)] 耐磨的, stout 強(qiáng)壯的, sturdy 強(qiáng)健的, working 做工作的, operative 有效的, functional 功能的in working order, 能正常發(fā)揮功能, 處于正常..., usable 可用的, helpful 有幫助的, utilitarian 功利的反義詞unserviceable, 無(wú)用的臨近詞servile, service, serviceable bife, serviceable tool, serviceable life, serviceable time, serviceable range, serviceable label, serviceable wagon, serviceable shoes, serviceable chest, serviceable stores 返回 serviceableness