他把所有精力和努力都投入到关于废物利用的论文写作，经过几个月的努力圆满

他把所有精力和努力都投入到关于废物利用的论文写作，经过几个月的努力圆满完成了论文写作。他很感激我对于论文提纲的建议，因为我告诉他不能想当然地认为是垃圾的很多东西，比如报纸，杂志，旧电脑和手机，实际上可以通过这样或那样的方式再循环，再利用。

他把所有精力和努力都投入到关于废物利用的论文写作，经过几个月的努力圆满完成了论文写作。 他很感激我对于论文提纲的建议，因为我告诉他不能想当然地认为是垃圾的很多东西，比如报纸，杂志，旧电脑和手机，实际上可以通过这样或那样的方式再循环，再利用。

He devoted all his energy and efforts to the paper writing on waste utilization, and successfully completed the paper writing after several months of efforts. He was very grateful for my suggestions on the outline of the paper, because I told him that many things that can't be taken for granted as rubbish, such as newspapers, magazines, old computers and mobile phones, can actually be recycled and reused in one way or another.<br>