circumference

/sә'kʌmfәrәns/ uk　 词频 #15774

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circumference 是什么意思

中文释义

n. 圆周, 周缘, 胸围

[医] 周缘, 环状面

英文释义

n. the size of something as given by the distance around it

n. the boundary line encompassing an area or object

n. the length of the closed curve of a circle

circumference 的真实例句

以下例句摘自真实英文文章，看看 circumference 在自然语境里怎么用：

The circumference of the Earth is about 24,901 miles (40,074 km) so it would be a little over an hour to see the whole planet.

—— 'Welcome home, Integrity': Artemis II crew return to Earth after 'bullseye landing' caps historic moon mission

And of course you also have a speedometer that counts how many times your tires rotate per second and computes a speed based on their circumference.

—— How Can Astronauts Tell How Fast They’re Going?

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