Get enough sleep – this will boost your energy and enable you to do what needs to be done without feeling tired, overwhelmed, or depressed.

于是你将会把消极的用积极的去替代。 足够的睡眠 – 这将燃烧你的能量，使你不感到劳累和沮丧的去做你需要做的事。

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If they don't have enough activity to expend their energy, they take it out on your favorite couch or your designer shoes. With bootcamp, your dog is too tired to be bad.

如果它们没有足够的活动来释放自己的精力，就会在你的沙发或名牌鞋上撒野。

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"You bet," he replied, "I used to work for an electric power company, but I got tired of thinking my best would never be good enough."

“没错，”他答道，“我以前曾在一家电力公司上班。”心想我最好也不过如此，厌倦了这种想法。

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The amount of weight you use should be challenging enough that your muscles feel tired by the end of the second set.

CNN: How much weight is needed to strengthen my bones?

"I wouldn't be surprised if even Ferrari drivers, tired of cars that are not comfortable enough for everyday driving, would switch, " he said.

BBC: Rolls-Royce unveils 'most powerful' model