1.White noise白噪音 Cars and other vehicles are a perfect environment that produces white noise. It’s a consistent noise, like the hum of tires or the purring of the car...
Alas， the evidence is incomplete. Researchers aren't allowed to overstimulate a random sample of babies to see what happens to their brains. Scientists even have trouble running studies in which some participants watch less; one said he could get ...
"Sometimes. One must speak a little, you know. It would look odd to be entirely silent for half an hour together, and yet for the advantage of some, conversation ought to b...
to have a hump in the front to have one on the way to learn all about diaper folding to wear the apron high waiting for the patter of little feet with child (注意:没有冠词)...
Locust ['lkst]是蝗虫,所以这个短语的意思就是:除了没闹蝗灾,什么都有了;可见还真不是什么好事儿啊。估计这个短语是辛勤劳动的农民伯伯发明的。因为啊,他们辛辛苦苦的种庄稼,这一年到头...
更多内容请点击：旅行社推出睡眠巴士,专治失眠……为什么人一坐车就犯困?