deduce
/dɪˈdjuːs/verb
with obj.
1- arrive at (a fact or a conclusion) by reasoning; draw as a logical conclusion推论, 演绎出（事实, 结论）：
little can be safely deduced from these figures
从这些数字中不能准确推断出什么来
with clause they deduced that the fish died because of water pollution.他们推断鱼是死于水污染。
1.1
- archaic trace the course or derivation of〈古〉对…追本溯源, 追溯…的来历：
he cannot deduce his descent wholly by heirs male.
他无法完全通过男性继承人来追溯祖籍。
派生词
deducible
adjective词源
late Middle English （in the sense 'lead or convey'）： from Latin deducere, from de- 'down'+ducere 'lead'.