... at one's height 登峰造极 at one's leisure当有空的时候 at peace 处于和平状态；处于平静状态 ...
3
?在…有空的时候
... at least至少；at most至多 at one's leisure在…有空的时候 lend itself/themselves to适合于（某用途） ...
4
?茶余饭后
... 天上地下 a huge difference 茶余饭后at one's leisure 袖手旁观 to look on with folded arms ...
双语例句
1
Then, the financial jest with acerbic only zealous those past economist, what had become American atone'sleisure 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。
2
This word that chamberlain gives doorknob Yuan Zongkui says to listen to everybody, one city person manages this in jest Matthew is persnickety, regard the joke of atone'sleisure as this his word.