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【常用的反义词构成的习语】1. black and white 白纸黑字；2. back and forth 来回地，反复地；3. pros and cons 利弊，Everything has its pros and cons. 凡事有利亦有弊；4. ups and downs 跌宕起伏，Life is full of ups and downs. 人生潮起潮落；5. ins and outs 详情，全部细节，来龙去脉 ​