動詞 deduct:

1. make a subtraction
   同義詞：subtract, take off
2. retain and refrain from disbursing; of payments
   同義詞：withhold, recoup
3. reason by deduction; establish by deduction
   同義詞：deduce, infer, derive

1. Nowadays income tax is normally deducted from a person's wages.
   現在，所得稅通常是在發(fā)工資前就已經扣除了。
2. Tax official: that does not influence the nature of your group. The whole design income is considered as one obtained from china. If you provide the proofs to the design draft completed in Japan, this part of income can be deducted.
   稅務局：這不影響專家組作為機構的性質。只是在確定機構應稅收入時，可以將境外勞務費從總設計收入中扣除，如果你們能提供資料證明的話。
3. The remaining assets of a business after all liabilities have been deducted; net worth.
   資產凈值一個企業(yè)在扣除了所有的債務后所余資產; 凈值
4. Tax is deducted from your salary.
   稅金從你的薪金中扣除。

de.duct

v.（動詞）
de.duct.ed,de.duct.ing,de.ducts
v.tr.（及物動詞）
To take away (a quantity) from another; subtract.
減少：從…里拿走一定的量；減去
To derive by deduction; deduce.
推論：通過演繹得出；推論，推斷
v.intr.（不及物動詞）
To take away a desirable part:
拿走有利的部分：
例句：
Poor plumbing deducts from the value of the house.
低劣的水管裝置從房子的價格中扣除了

來源：
Middle English deducten
中古英語 deducten
from Latin dôdôcere dôduct- [to lead away or down] * see deduce
源自 拉丁語 dôdôcere dôduct- [使轉向] *參見 deduce