我姐姐正在读博士。 我姐姐正在讀博士。 我姐姐正在讀博士。

My older sister is studying for her doctorate.

Simplified
我姐姐正在读博士。
Traditional (Taiwan)
我姐姐正在讀博士。
Pinyin
Wǒ jiějie zhèngzài dú bóshì.
Bopomofo
ㄨㄛˇ ㄐㄧㄝˇ ˙ㄐㄧㄝ ㄓㄥˋ ㄗㄞˋ ㄉㄨˊ ㄅㄛˊ ㄕˋ。

Written with HSK 4 vocabulary, at CEFR level B1.

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