tractable
/ˈtræktəbl/adjective
1- (of a person) easy to control or influence（人）听话的, 易受影响的：
underfed children were more tractable.
吃不饱的孩子更听话些。
1.1
- (of a situation or problem) easy to deal with（情况, 问题）易处理的：
trying to make the mathematics tractable.
争取使数学变得容易些。
派生词
tractability
nountractably
adverb词源
early 16th cent.: from Latin tractabilis, from tractare 'to handle' （see TRACTATE）.