本集核心英语单词及例句：

1.notebook (n.)笔记簿；笔记本电脑
Does this notebook belong to you?
这个笔记本是你的吗？

2.improvement (n.)改进，改善，进步
People's living standard has had a perceptible improvement.
人民的生活水平明显地改善了。

3.memory (n.)记忆，记忆力
She is always moaning about her bad memory.
她总是抱怨自己的记性不好。

4.speech (n.)演说，演讲，发言
His speech was well received.
他的演说引起强烈反响。

5.employee (n.)雇工，雇员
That employee has since been sacked.
那名雇员已被解雇。

6.useful (adj.)有用的，有益的，有帮助的
This manual is full of useful tips.
这本小册子里有很多实用的小建议。