daynight rhythm昼夜: day and night; round the clo ...规则: rule; regulation; ordination ...的: 4次方是 The fourth power of 2 i ...发生: happen; occur; take place; a ...规则的: regular下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:昼夜规则的发生，即可在微信中查询翻译
