他研究了十年。 他研究了十年。 他研究了十年。
- Simplified
- 他研究了十年。
- Pinyin
- Bopomofo
Written with HSK 4 vocabulary, at CEFR level B2.
Words in this sentence
This sentence is from Tatoeba, contributed by Martha, with the English translation by CK. It is used here under CC BY 2.0 FR.