每日背誦第三期4
Some people are night owls; some are early birds. You probably know which one you are, but did you know that there may be a biological reason why some people are out of bed at dawn while others prefer to burn the midnight oil?
一些人是夜貓子；一些人則是早起的鳥兒。也許你知道你是哪種人，但是你可知道也許是生物的原因，一些人破曉時分就起床，一些人則喜歡挑燈夜戰(zhàn)？
(短文節(jié)選,本期開始連載：早起的蟲兒被鳥吃？)
