Scientists say multiple sclerosis does not appear to be passed from parents to children.
VOA: special.2009.01.06
All right, so that notion of abstraction and we're going to come back to multiple times -- during the term-- and it's not just abstraction, -- it's the idea of a specification.
现在就试试,这就是抽象的概念,我回过来说,我们将要多次提到这个术语。
It is not an SI unit because it is not a multiple of 10 to the 3rd, but I like the angstrom.
它不是国际制单位,因为它不是,10的3次方进制,但我还是喜欢这个单位。
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