酌定
make a decision as one sees fit;use one’s dicretion;be left to the discretion of;be at the discretion of…
對于辦理有效期更長的簽證，可根據(jù)派遣國政府的要求作為個案處理，由接受國政府～。Longer validity visas may be issued on a case--by-case basis upon request of the sending government and at the discretion of the receiving government.