off-day

n (infml 口) day when one does things badly, is unlucky, clumsy, etc 不顺利、 倒霉、 不顺心...的一天: Monday is always an off-day for me. 对我来说星期一总是诸事不宜.

of all time, of course, of importance, of itself, of late years, of necessity, of one's own, of the moment, of...importance, of...interest, of...value, off, off and on, off balance, off chance, off duty, off of, off(-), off-beat, off-cut, off-duty, off-grade, off-handedly, off-key, off-licence, off-line, off-load, off-peak, off-putting, off-season, off-stage, off-street, off-white, offal, offbeat, offence, offence (US offense), offend, offender, offense,