At each cross-section, people are either willing to use a certain sign in a certain way or they're not.
在每一个横街面上,人们可以自由的,以自己的方式使用符号。
So, what will start with on Monday is doing the most simple example of methane using these Lewis structure rules.
因此,下周一上课,我们会先以最简单的例子--甲烷开始,使用这些路易斯结构的规则。
That is to say that when we think we're telling the truth we're actually using worn-out figures of speech.
也就是说我们认为我们在讲述真理的时候,我们实际上却在使用一些陈腐的修辞手法。
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