[] to allow sth to start being used that has existed but not been available for use解开；释放◆The group is selling its publishing arm in an attempt to unlock value for shareholders.这个集团正准备出售其出版部门以实现股东价值。◆The deal with the USA will unlock billions of dollars of aid.与美国的这笔交易将会带来几十亿元的援助。