名词[U,C]

1.节奏，韵律，律动

2.规则变化，规律，节律

英语解释

an interval during which a recurring sequence of events occurs

the arrangement of spoken words alternating stressed and unstressed elements

the basic rhythmic unit in a piece of music

recurring at regular intervals

natural family planning in which ovulation is assumed to occur 14 days before the onset of a period (the fertile period would be assumed to extend from day 10 through day 18 of her cycle)