In a second part of the study, the researchers collected T-shirts worn by fathers and their children while sleeping.
在第二部分的研究中，研究人员搜集这些孩子和父亲睡觉时穿着的T恤。
Don? T make any noise. The baby is sleeping in the cradle.
别弄出任何声音来。小宝宝在摇篮里睡着了。
I haven "t been sleeping very well for the last week or so."
有一个星期左右的时间我的觉睡得不好。
He can "t have been reading. He must have been sleeping."
他那时肯定不是在看书，他准是在睡觉。
He can "t have been reading. He must have been sleeping."
他那时肯定不是在看书，他准是在睡觉。
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