[生理]?生殖周期
生殖周期
[生理]?性周期
性周期
有规则性周期
Sharman Apt Russell has done a wonderful job of gathering bits of exotic butterfly lore to brighten up her account of the insect's life-cycle, its acrobatic sexual practices and its amazing gift for mimicry.
ECONOMIST: Butterflies
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。