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。
- Simplified
- 他正在思考这个难题。
- Traditional (Taiwan)
- 他正在思考這個難題。
- Pinyin
- Bopomofo
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.