李原本求助谁在寻找新的光催化纳米材料，清理受感染的饮用水巴伦认为，在增强P25的巨大潜力。
Li, who originally approached Barron for help in searching for new photocatalytic nanomaterials to clean up infected drinking water, sees great potential in enhanced P25.
母亲帮他洗衣服，我和同学帮他清理房屋，帖春联，挂灯笼，李大穿范扁既壮焕憋唯铂沥爷很高兴。
Mother, washed clothes for him and I and my the students helped him clean up housing, Paste New Year couplets, and hang lanterns, so Li uncle was very happy.
据在花园内锻炼的李大爷介绍，这位老人是在义务清理淤泥。
According to toughens in the flow garden of li Da Dun Ye recommend, this old man cleans up sludge in the obligation.
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