If you can't explain it simply,

you don't understand it well enough.

摘要: 生物学基础 阅读全文
posted @ 2019-02-21 17:10 赵小亮 阅读(1321) 评论(0) 推荐(0) 编辑


Though the night was made for loving,
and the day returns too soon,
yet we'll go no more a-roving
by the light of the moon.