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Chinese dictionary
each making up what the other lacks
互通有无，调节余缺
each making up the other's deficiency from his own surplus
他们互通有无，共享大量信息。
They share a great deal of information on a quid pro quo basis.
synonym
互通有无，调节余缺
each making up the other's deficiency from his own surplus
他们互通有无，共享大量信息。
They share a great deal of information on a quid pro quo basis.