本集核心英语单词及例句：

1.deceive (v.)欺骗；行骗
Tom deceived me into signing the papers
Tom骗我在文件上签了字。

2.theoretically (adv.)理论地；理论上
I'll explain how it works theoretically.
我将解释它在理论上如何运作。

3.prefix (n.)前缀
The kilo is often used as a prefix.
kilo经常被用作单词前缀。

4.preposition (n.)介词；前置词
You should cancel this preposition in the sentence.
你应该删去句子中的这个介词。

5.divide (adj.)分裂的；分开的
The river divides the city into two parts.
这条河把城市分成了两部分。

6.contact (vt.)使接触，联系
If you have any questions, you can contact me anytime.
如果有任何问题，你可以随时联系我。