石头是怎么生成的? 石頭是怎麼生成的? 石頭是怎麼生成的?

How are rocks formed?

Simplified
石头是怎么生成的?
Traditional (Taiwan)
石頭是怎麼生成的?
Pinyin
Shítou shì zěnme shēngchéng de?
Bopomofo
ㄕˊ ˙ㄊㄡ ㄕˋ ㄗㄣˇ ˙ㄇㄜ ㄕㄥ ㄔㄥˊ ˙ㄉㄜ?

Written with HSK 6 vocabulary, at CEFR level B2.

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