注释
(1) positive 正面的，积极的
negative 负面的，消极的
A positive way of thinking can make you optimistic and a negative way of thinking can make you pessimistic
(2) rearrange 重现安排
review 复习 preview预习
It's very important to preview the lessons before the class and review the lessons after the class.
(3) cool
The autumn is cool. 凉爽的，冷酷的都可以，还有极好的意思。
Let’s go bowling. Hey. That’s really cool.
