他已经教了20年。

He has been teaching for 20 years.

Traditional

他已經教了20年。

Pinyin

Tā yǐjīng jiāole èrshí nián.

Bopomofo

ㄊㄚ ㄧˇ ㄐㄧㄥ ㄐㄧㄠ ˙ㄌㄜ ㄦˋ ㄕˊ ㄋㄧㄢˊ。

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

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