用现代文翻译下列句子。
孔子东游，见两小儿辩斗，问其故。
孔子到东方游学，途中遇见两个小孩儿在争辩，便问他们争辩的原因。
I don't know when he back. Please tell me when he back.
____(tell) many times, he still repeated the same mistakes.
