reduction on和reduction in的这个介词有什么区别?RT

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reduction on和reduction in的这个介词有什么区别?RT
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reduction on和reduction in的这个介词有什么区别?RT
reduction on和reduction in的这个介词有什么区别?
RT

reduction on和reduction in的这个介词有什么区别?RT
多数用in
a 33% reduction in the number of hospital beds available 医院的牀位减少 33% ◊ There has been some reduction in unemployment.失业人数有所减少.◊ a slight/ significant/ substantial/ drastic reduction in costs 成本的略微╱显着╱大幅度╱急剧降低
on a 25% on normal subscription rates |