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ladies and gentlemen，保持乐观的重要性_1500字， ladies and gentlemen， so does life. hindrances and difficulties do exist， this attitude will do you no good， how can you conquer them? thus， ladies and gentlemen， the devil of cancer would have devoured his life and th
温馨提醒：随时光变迁，文中所陈述观点；准确性、难免有所变动，因此文中观点仅供参考。
