deductionKK [dɪˋdʌkʃən] /dɪˈdʌkʃən/名詞1扣除、扣除額、減免After all the deductions, my monthly salary looks much smaller.扣除各項費用後,我的月薪看起來少了很多。2推論、推斷Her deduction about the missing key turned out to be correct.她對那把不見的鑰匙所做的推論後來證明是正確的。3演繹、演繹法The detective solved the case by careful deduction rather than luck.那位偵探靠的是縝密的演繹推理,而不是運氣。