有时候力量源自你的固执和决绝，但更多的时候，吸取以前的教训，聪明地绕过障碍是你潜在的更大力量。
Sometimes your strength lies in stubbornness and determination but even more often it is hidden in your ability to go around obstacles and learn from the previous mistakes.
但他们也必须吸取以前提供音乐和视频等娱乐服务的经验教训。
But they also have to learn from the lessons of delivering entertainment services such as music and video.
从以前的经验吸取教训后，如果遇到不能出去跑步的时候，我就在家里做耐力组合训练和健美操。
Learning from my past experience, what I do instead is I do a combination of resistance exercises and aerobics at home.
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