CARDIA study scientists weighed and measured the waist circumference and BMI of study participants.(從事CARDIA研究的科學家們，對研究參與者進行稱重和腰圍與身體質量指數（BMI）的測量。)

When a hatter measures the circumference of your head, he's trying to work out what size of hat would fit you.(當一位制帽商測量你的頭圍時，他是為了找出適合你的帽子型號。)

The earth's circumference is about 25,000 miles.(地球的圓周約為25,000英里。)

I have to have a whole number of wavelengths to get around the circumference.(我必須有很多波長才能繞這個圓周。)

Do not confuse ever the tangential acceleration, which is along the circumference, with centripetal acceleration.(不要把沿圓周的切向加速度與向心加速度混淆。)

Finding right triangles with a certain circumference.(給定周長尋找直角三角形。)

To translate this formula into an expression, you would use variables to record the radius and circumference.(要將這個公式轉換為一個表達式，你需要使用變量來記錄半徑及周長。)

Estimate your body composition: Waist circumference and body mass index.(評估你的身體構成指數：腰圍和體重指數。)

This is the one that makes the speed change along the circumference.(這是導致速度，沿著圓周改變的因素。)

Now all the mass is at the circumference, and now it takes more time.(現在所有的質量都在圓周上，現在它會花更多的時間。)