圆的直径是半径的两倍。 圓的直徑是半徑的兩倍。 圓的直徑是半徑的兩倍。

The diameter of a circle is twice its radius.

Simplified
圆的直径是半径的两倍。
Traditional (Taiwan)
圓的直徑是半徑的兩倍。
Pinyin
Yuán de zhíjìng shì bànjìng de liǎngbèi.
Bopomofo
ㄩㄢˊ ˙ㄉㄜ ㄓˊ ㄐㄧㄥˋ ㄕˋ ㄅㄢˋ ㄐㄧㄥˋ ˙ㄉㄜ ㄌㄧㄤˇ ㄅㄟˋ。

Written with HSK 7-9 vocabulary, at CEFR level C1.

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