So, this one can be tricky because oxygen looks like it's in the middle because of the way it's written, but we need to start by looking at the lowest ionization energy.
这个例子可能有些狡猾,因为氧看起来是在中间的,因为它是这样写的,但是我们需要从寻找最低的电离能开始。
It can be, you know, about, almost all, like... This is midterm week,
有时候,比如说,现在是期中考试周,
Everyone's looking really like this was hard, but it can't be that hard.
看大家的表情好像是非常难的样子,其实没那么难
You can imagine that there are many requirements that a device like this has to meet in order for it to be a good artificial hip and we'll talk about those and how the design of these has changed over the years and what we can expect in the future.
你可以想象,这种装置对技术要求极高,这样它才能成为,一个好的人工髋关节,我们会讲到这些,以及这些年来这项技术的设计有哪些改进,在未来会有怎样的创新
The new food guide pyramid can be seen at mypyramid.gov and it looks like this.
新的食物金字塔可以在,mypyramid.gov官网上找到,如图所示
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