The ones who would conserve energy, that is they were sedentary when possible, other then when they had to go get food would again not waste their calories but would save them and contribute to the gene pool.
那些保存能量的人,那些能躺不坐,能坐不站的人,除非必须再次寻找食物,否则是绝对不会浪费能量的人,也是对基因库有贡献的
So that's a big help. And equilibrium happens when there isn't any possible change of state that would satisfy this.
这个非常方便,当所有的变化,都无法满足这个公式的时候,系统就达到了平衡。
So,all this is,is just,as we begin to ask ourselves, what could it possible mean when people say everyone dies alone?
所以我们要开始问自己,人们说他们孤独而死的时候是什么意思?
But they're accountable and we can list all possible values when they're discrete and form a probability weighted average of the outcomes.
但随机变量是离散的话,我们可以把所有的可能值列出来,然后算出加权平均值
It refers to that period that Plato says in the letter looked like "a golden age, " when many things seemed possible."
也就是柏拉图在书信中所指,“事物充满无限可能的,黄金时期“
When one thinks about changing the health of a population diet has to be considered one of the possible places to intervene.
如果想要改变一群人的健康状况,饮食一定会是着手点之一
So we know we always want to have our systems in as low an energy as possible, so it makes sense that a bond would happen any time we got a lower energy when we combine two atoms, versus when we keep them separate.
我们知道我们总是希望使我们的系统,处于能量尽可能低的状态,因此就应该有化学键产生,一旦我们合并两个原子之后体系的能量变得更低,相较于分开时。
not just our imagination-- they stretch our ability to understand when and where change is possible.
不只延伸了我们的想象,还让我们能理解,怎样的时间和地点,有可能产生变化。
When distinguishing a particular strategy from the set of possible strategies.
当需要表示策略集合中的,一个特定策略时
When you do this, how many possible sentences are there?
按照这种规则,能够组成多少个可能的句子
I'll compute its value. Then I'll empty the backpack out, put another combination of stuff compute its value, try all possible ways of filling up the backpack, and then when I'm done, I'll know which was the best.
直至把它填满,然后计算价值,然后我把包里的东西都导出来,再换一堆东西计算它们的价值,尝试过所有填满包的方案后,我就知道哪一种方案是最好的了。
So if I post it on Wednesday to cover the material for that week, then you should attempt it as quickly as possible because I'm going to assume you have done the problems when you come for the next few lectures.
如果我周三布置了关于该周课堂内容的作业,你们应该尽快着手去做,因为当你下周来上新课时,我会假设大家都已经把上周题目做完了
When you mix two chemicals together, it could be any number, there's an infinite number of possible numbers and that would be continuous.
把两种试剂混合的时候,温度可以取任何值,对温度的取值有无数种可能,也就是说,是连续的
Now for many of you,when you look at this you may say, "Well,Ok,yes,change is possible.
你们可能会说,“好吧,改变是有可能的。
When you add another asset, you do better when you have three assets, you do better than if you just had two because there's more diversification possible with three assets than with two.
当你增加一种资产,有三种资产的时候,投资组合的表现会比两种资产时更好,因为三种资产相比两种资产的情况,可选择的投资组合更多。
So, we should use that, but people in finance resist using that because it's a lower number and when you're advertising your return you want to make it look as big as possible.
所以我们应该用这个指标,但金融界反感使用几何平均,因为它比其他平均数都来得小,他们为自己的收益率做广告时,当然希望数字越大越好
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