de·duc·tion/dɪ`dʌkʃən; dɪˈdʌkʃən/ n 1 [C] an amount that is taken away from a total 扣除，扣除额: My salary is about $2000 a month, after deductions. 扣除各种款项之后，我的薪水约为每月 2,000 美元。 2 [C,U] when you decide that something is likely to be true, using the information that you have 推论，演绎: his formidable powers of deduction 他杰出的演绎能力