本集核心英语单词及例句：

1.prefix (n.)语前缀
What does the prefix "amphi" mean?
前缀"amphi"这个词是什么意思？

2.happened (vi.)发生
You wouldn’t believe what happened yesterday.
你不会相信昨天发生了什么事情。

3.incidence (n.)事件
There was an incidence of theft yesterday at the grocery store; one of the refrigerators caught fire and the entire store blew up.
昨天杂货店发生一起盗窃案；一个冰箱起火，引爆了整个商店。

4.optimistic (adj.)乐观的
It is crucial that you always keep an optimistic attitude whenever you learn a foreign language.
当你学习一门外语的时候，保持一种非常乐观的态度是非常重要的。

5.unexpected (n.)意想不到的
Unexpected events，such as a car accidents or slipping on banana peels, seem to always happen whenever we are in bad moods.
每当我们心情不好的时候总会发生一些意想不到的事情, 比如车祸或你被香蕉皮滑倒。

6.incredible (adj.)不可预见的
They were impressed by Luke's incredible ability positively.
让他们印象深刻的是Luke那难以置信的能力。

7.fate (n.)命运
Not everyone believes in fate and destiny; some people think everything happens for a reason.
不是所有人都相信命运，一些人认为所有事情的发生都是有原因的。