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可可英语每日一句口语：
Be truthful. Do what you know is right, put forth effort when it is called for and persist. The more you do so, the more easily you'll be able to do so.——要坦诚，要做你认为对的事，当有需要时便应奋力而为，并坚持到底。你越是这样，越会觉得游刃有余。
【知识点讲解】
effort 努力
例句：All my efforts were fruitless.我所有的努力都白费了。
