At that point it becomes a requirements exercise... do these gateways meet my needs, and if so, why am I continuing down a slower, more costly, more laborious path to the same end goal?
此时一个需求分析问题就出现了……这些网关能否满足我的需求？如果可以的话，为什么还要继续沿着原先那条更慢、更昂贵、更费劲的道路向相同的目标前进呢？
The heart is a muscle that needs regular exercise to keep it working effectively.
心脏是一个肌肉组织，需要有规律的锻炼来让它更有效的工作。
At that point it becomes a requirements exercise... do these gateways meet my needs, and if so, why am I continuing down a slower, more costly, more laborious path to the same end goal?
此时一个需求分析问题就出现了了……这些网关能否满足我的需求？如果可以的话，为什么还要继续沿着原先那条更慢、更昂贵、更费劲的道路向相同的目标前进呢？
Barry: Of course, you have to walk a dog every day because it needs the exercise to stay healthy.
巴里：当然，你每天都得带狗儿外出走走，因为他们要运动一下，才能保持健康。
There are many kinds of exercise. It is easy to choose one that suits you. The important thing to remember is that exercise needs to be a part of your daily life.
锻炼的方式很多，你很容易就可以选择出适合自己的，重要的是要记住锻炼要成为你日常生活的一部分。
Football is a good team game, it is good exercise for the body, it needs skill and a quick brain, it is popular and it is cheap.
足球是一个好的团队游戏，它对身体是良好的锻炼，它需要技巧和敏捷的头脑，它受欢迎并方便。
Just like your body, your brain needs exercise to stay in shape Maintaining it simply involves completing small exercises without pain, stress, or boredom.
和你的身体一样，你的大脑同样需要锻炼才能保持最佳状态，这就需要做一些没有痛苦，压力，烦躁的小练习。
Exercise-and then exercise some more. Like your heart, your brain needs good blood flow to stay vital, and the best way to get it is through regular exercise.
运动，运动再运动 就像心脏一样，你的大脑一样也需要新鲜血液，而最好保持大脑活跃的方法就是定期运动。
Therefore, it still needs a further research weather or not ACE gene can be used as a genetic marker of physical exercise ability and used in training and the scientific selection of athletes.
因此，ACE基因能否作为人类运动能力的遗传标志，用于训练和运动员的科学选材，有待进一步研究。
However, in these teaching behavior that needs to change, it is very significant that the teaching behavior transition in the physics exercise of the senior high school teacher.
而在这些需要转变的教学行为中，高中教师的习题教学行为的转变具有重要意义。
However, in these teaching behavior that needs to change, it is very significant that the teaching behavior transition in the physics exercise of the senior high school teacher.
而在这些需要转变的教学行为中，高中教师的习题教学行为的转变具有重要意义。
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