at leisure

基本解释

He leant on the chair and began his lecture at leisure.
他靠在椅子上开始从容地进行他的演讲了。
Having opened, I emptied the whole contents into my apron, and took them with me to examine at leisure in my own chamber.
一打开抽屉，我就把里面所有的东西都倒在我的围裙里，再带到我自己的屋子里从容地检查着。
Some analysts worry that the supposedly temporary measure will never be reversed, but will instead join a host of other Brazilian taxes introduced in haste and paid at leisure.
一些分析师担心，这些所谓的“临时”措施，可能永远不会被撤销，反而会成为巴西众多草率推出从容支付的税收之一。

I brought the text with me. You can look at it now or at your leisure.
我带来了这部作品，你们可以看看，现在或者是有空时。
耶鲁公开课 - 文学理论导论课程节选

One objection is of course that it depends what people do at work and at leisure.
FORBES: What Environmental Benefits Of Working Shorter Hours?
The pen combined with the true multi-touch capabilities suits a variety of activities whether at work or at leisure.
ENGADGET: N-trig's Digital Pencil plays pen and fingertip roles, claims mastery of both
Still, with his opponents in disarray and their leadership candidates uninspiring, Mr Salmond can build his case at leisure.
ECONOMIST: Scottish politics