Also, in a very different mood, the poem "For Once, Then, Something."
还有另一首完全不同的情绪的诗,“只一次,便成永远“
But for now all you need to know is - that these four different kingdoms-- one was where we now have Greece, another one was where Syria is, another was Egypt, and then there was another further north, but that's not as important for us.
不过目前你们只需要知道,这四个不同的王国-,一个是当今的希腊,一个是当今的叙利亚,一个是埃及,还有一个在更北面的地方,不过对我们来说不是很重要。
Suppose we had a lot of different stocks that we could put into a portfolio, and suppose they're all independent of each other-- that means there's no correlation.
假设我们现在有很多只不同的股票,可以放进我们的投资组合里,同时假设它们都是相互独立的-,也就是说它们之间没有相关性。
Because sometimes the value of a combination is different then the value you would get by just thinking about each one of the parts in isolation and then adding them up.
因为有时一个组合的价值会不同,那么你得到的价值是只单独考虑每一部分,然后把它们相加所得。
Study at their views and I think what I'm talking about is really completely different, I have no sympathy for ideas that say we want to get rid of people because their racial background or because in somewhere they are blot on the Aryan folk.
我也研究了他们的观点,然而我觉得,我的学说和纳粹是全然不同的,我并不赞同他们的说法,那就是,我们要消灭一些民族,只因为他们不同的宗教,因为他们在雅利安传说中的,不良形象。
While there are only four different bases that make up either RNA or DNA, and so the complexity of an RNA polymer is limited.
在RNA或DNA的构成中,只含四种不同的碱基,因此一个RNA分子的复杂程度是有限的
Synthesis always occurs in one direction and that makes sense to you now because you know there's a directionality and the chemistry is different going one way than the other and this DNA polymerase only works on the chemistry going in one direction.
NA复制过程是单向的,现在你们该明白原因了,因为DNA单链有方向性,DNA在两个方向上化学性质不同,DNA聚合酶,只在一个方向上起作用
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