他正在思考这个难题。 他正在思考這個難題。 他正在思考這個難題。

He's thinking about this difficult problem.

Simplified
他正在思考这个难题。
Traditional (Taiwan)
他正在思考這個難題。
Pinyin
Tā zhèngzài sīkǎo zhège nántí.
Bopomofo
ㄊㄚ ㄓㄥˋ ㄗㄞˋ ㄙ ㄎㄠˇ ㄓㄜˋ ˙ㄍㄜ ㄋㄢˊ ㄊㄧˊ。

Written with HSK 5 vocabulary, at CEFR level B2.

Words in this sentence

This sentence is from Tatoeba, contributed by katshi94, with the English translation by katshi94. It is used here under CC BY 2.0 FR.

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