So, there's two ways to draw the letter phi, by the way.
其实,这个字母有两种书写方式。
Both words are normally used in so vague a way that any definition is liable to be challenged, but one must draw a distinction between them, since two different and even opposing ideas are involved.
通常这两个词使用起来都表意不清,以至于任何对这两个词的定义都受到质疑。但是,我们必须要分清两者,因为这关系到两种不同的、甚至是截然相反的思想。
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