天火字典

英日字典：さくげん

さくげん

削減

溯源

遡源

削減：

(n,vs)
cut
reduction
curtailment

(P)
溯源：

(n,vs)
returning to the origin
going back to the beginning
retracing
遡源：

(n,vs)
returning to the origin
going back to the beginning
retracing

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