大约在40岁左右,男子的睡眠质量就开始下降。
By the age of 40, men's quality of sleep also begins to diminish.
即使在官方宣布研究结果之前,这两家公司的股票就开始下降了。
Shares in the two companies' stock began falling even before the official announcement of the results.
事实上,许多研究都表明过了某一特定的点,人的生产效率和创造性就开始下降。
In fact, many studies indicate that after a certain point, anyone's productivity and creativity begin to decrease.
That means that they've never declined as much in one month before; our data started in 1987.
那意味着它们从来没有在,一个月之内下降过这么多;,我们从1987年就开始记录数据了。
It doesn't match up very well though because interest rates have been going down since 1980 and the boom is very sudden, so it seems to me that Greenspan should have seen this bubble coming.
虽然这说法有些瑕疵,因为利率自1980年开始就一直下降,但繁荣却突如其来,所以我觉得,格林斯潘本应能看到泡沫的发生
Now, if I was a person that was designing a vaccine and I noticed that this was the response that it got, that antibodies were produced, they reached some intermediate level, they started to fall, I would say, "Well I haven't stimulated the immune system enough, let me re-boost, let me give another dose of antigen."
现在,如果我正在研究一种疫苗,我注意到机体会对这种疫苗产生应答,也就是会产生抗体,当抗体浓度达到中等水平后,就开始下降,就可以说,疫苗对免疫系统刺激还不足,我需要提高抗原浓度,让我再把剂量再加大一倍
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