杜镇长当时正在这个小山村考察，听说了这件事后，便挺身而出，帮他们交了学费后，还承担了他们平时的生活费用。
B-Person I-Person I-Person B-Time I-Time O O O O B-Location I-Location I-Location O O O B-Time I-Time I-Time I-Time I-Time I-Time I-Time O O O O O O O O B-Person I-Person O O B-Thing I-Thing O O O O O O B-Person I-Person O O O O O B-Thing I-Thing O