at discretion的用法和样例:
例句
- He has put his car at my disposal.
他已把车子让给我随意使用。 - I allow students to come and go at discretion.
我允许学生们随意的来来去去。 - They come and go and wander at their will.
他们任意地来去游逛。 - I was the first to arrive at the inn and got the pick of rooms.
我第一个到达旅馆,可以任意选择房间。 - I didn't buy it for I knew I was entitled as its author to at least ten complimentary copies.
但我没有买它,因为我知道,至少可以无条件地得到十本的。