One of the things that we discussed was this type of imagery here where you have vertically these pillars, if you will, or we could even call--the more I sort of looked at this--sort of call them tree trunks almost.
我们讨论的问题之一是这里的这种意象,这些垂直的柱子,如果你愿意的话,我们可以称之为,我越看越觉得称之为树干比较好。
What is useful is point to somebody and say, "You in the green sweater, call the police," and the psychological evidence is if you--if somebody's-- if I am wearing the green sweater and somebody asks me to call the police I will call the police. I'm a good guy.
有用的办法是,指着某个人说,“穿绿色毛衣那个人,快报警”,心理学证明如果你…,如果我穿着绿色毛衣,有人叫我报警,我会报警,我是好人。
If you call that your origin, your y0 will be 0, but ground will be called -15.
如果你取楼顶为原点,你的y0就等于0,但是地面就要标记为-15
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