in light of the nature of the contract meaning in Chinese

根据合同性质不得转让

Where each party owes performance to the other party that is due , and the subject matters of the obligations are identical in type and quality , either party may set off its obligation against the obligation of the other party , except where set - off is prohibited by law or in light of the nature of the contract
第九十九条当事人互负到期债务，该债务的标的物种类、品质相同的，任何一方可以将自己的债务与对方的债务抵销，但依照法律规定或者按照合同性质不得抵销的除外。