constructive
/kənˈstrʌktɪv/adjective
1
- serving a useful purpose建设性的; 有用的; 有益的：
constructive advice.
有益的建议。
2
- Law derived by inference; not obvious or stated explicitly【律】推定的：
constructive liability.
推定责任。
3
- Mathematics relating to, based on, or denoting mathematical proofs which show how an entity may in principle be constructed or arrived at in a finite number of steps【数】（与）推断（有关）的; 以推断为基础的。
派生词
constructively
adverbconstructiveness
noun词源
mid 17th cent. (in sense 2)： from late Latin constructivus, from Latin construct- 'heap together', from the verb construere （see CONSTRUCT）.