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When business is ______, there is usually an obvious increase in unemployment. A. degraded B. depressed C. reduced D. lessened [depress] depress v.使沮丧, 使萧条 depression 沮丧, 萧条, 低洼地带 [/depress] [degrade] degrade v.降级, 堕落 [/degrade] [reduce] reduce vt.减少, 缩小 induce 诱惑, 劝诱 produce 生产 deduce 推断, 推论, 演绎出 educate 教育 education n.教育 introduce 介绍 [/reduce] [lessen] lessen 减少, 变得更小 enrich 使丰富, 使充实 [/lessen] [recession] recession (经济)不景气 [/recession] [redundant] redundant 冗余的 [/redundant] | 
