at one's leisure

leisure time leisure center leisure wears at one's leisure

在空闲时候

At one's leisure, we can have a race.

我 能游泳快,有空时, 我们可以来场比赛.

to write at one's leisure:

在空闲时写：

It provides relaxation for leisure hours, as just looking at one's treasures is always a joy.

它可以使人在闲暇中得到休息, 因为欣赏自己收藏的珍品总会充满了乐趣.

then, the financial jest with acerbic only zealous those past economist, what had become american at one's leisure today is newfangled.

于是，那些过去只有尖刻的经济学家热衷的金融笑话，今天已经成为了美国人茶余饭后的最新流行。

no eternal mystery story, not at one's leisure the gossipy tidbits, only the lonely, a sharp pain in my left atrium, right ventricle.

没有千古奇谈的故事，没有茶余饭后的八卦趣闻，只有寂寞，尖锐的刺痛我的左心房，右心室。

The Northern Wey differentiated the local officials from the central ones, the central officials at leisure from those at posts in the two systems of merit-testing and election after the emperor of Xuanwu's awarding one grade to all the officials.

宣武帝正始泛阶以后，北魏在考课制度和选举制度两个方面将地方官与中央官相区别，中央散官与中央职事官相区别。