词典释义：
an unfavourable circumstance or condition that reduces the chances of success or effectiveness
不利条件；不利环境
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a major disadvantage is the limited nature of the data 一个主要的不利条件是资料的有限性
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[mass noun]
the impact of poverty and disadvantage on children .贫困和劣境给孩子们造成的影响。
place in an unfavourable position in relation to someone or something else
使（别人或其他事物）处于不利地位
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the pension scheme tends to disadvantage women .这个养老金计划会使妇女处于不利地位。
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at a disadvantage in an unfavourable position relative to someone or someone else 处于不利地位stringent regulations have put British farmers at a disadvantage -
to one's disadvantage so as to cause harm to one's interests or standing 对（某人）不利his poor educational track record inevitably worked to his disadvantage . 他很差的学习成绩记录肯定会对他不利
"late Middle English： from Old French
