at will   (TTS發音)

as one pleases or likes隨意地

    Gone for ever are the days when imperialism could trample small nations under foot at will. 帝國主義任意把小國踩在腳下的日子已一去不復返了。

    No one can do anything at will. 誰也不能為所欲為。

    He comes and goes at will. 他來去自由。