off-day

You cannot take a day off without authorization.

未经批准你不得假。

We work on Saturdays and have a day off in lieu during the week.

我们每星期六上班，平时换天。

Although favorite to win the race, the champion jockey had an off day and was unplaced.

虽然那位第流职业骑手最有希望赢得比赛胜利, 身体感到不舒服, 结果未得名次。

Although favourite to win the race, the champion jockey had an off day and was unplaced .

尽管那位第流赛马职业骑手最有希望赢得比赛胜利，感到身体不舒服，结果未得名次。