《英文天天写》是沪江社团一档写作类社刊，其目的在于提升大家的英语写作能力。每期节目主持人都会给出一个话题，积极参加的童鞋还会得到主持人的专业点评哦！想提高英语写作的童鞋千万不要错过哦！去沪江社团订阅本社刊！

       

话题：

Writing: imagine a scenario or express your opinion
Radius
Radius is the distance from the center of the circle to the circumference. What is the radius? What does it refer to? Why is it important?
This week's topic: It was the radius... (90-110 words)

Suggestions:
1) calculate the area of the circle with the radius
2) the search radius
3) the plural of radius is radii
4) air space radius of an airport
5) Instead of writing a scenario, feel free to comment on the story below.

范例1：

He had been hanging around the premise of the club for the past week. Within about a block radius, he knew what stores and shops there were like the back of his hand. He was especially familiar with which ones were good as stake out locations for him to observe what was going on around the club. Doug found the coffee shop and pizza place best for staking out. Those two places were the most comfortable, and because the traffic was high, there were lots of people going in and out all the time.

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