[jiě kai]
undo; unlash; unlatch; unmake; untie; unfasten; untwisting; unlocking; demesh; unlock; [电] disconnect
untie a package
解开包裹
untie one's tie
解开领带
undo a button
解开钮扣
unbutton one's jacket
解开上衣
untie a kerchief
解开头巾
unlace the shoes
解开鞋带
find a clue to the mystery
解开这个谜
get rid of a hang-up
解开疙瘩