自由负重器械和机器负重器械都是受欢迎的力量训练工具，但它们不是唯一的选择，你可以用并不昂贵的阻力塑料管（译者：我猜是指用硬塑料管之类的代替拉力器啥的），或者甚至用自身体重进行力量训练（译者：俯卧撑嘛）。
Free weights and weight machines are popular strength training tools, but they're not the only options. You can do strength training with inexpensive resistance tubing or even your own body weight.
还有更多的可利用的系列书籍，超出了我在这里能够描述的篇幅限制，但是它们并不是唯一的可以找到你感兴趣主题的书籍。
Many more book series are available than I have room to describe here, but they are not the only place to find books on topics you're interested in.
质量问题也许是对AOSD方法采用的最大的阻碍，但是它们并不是唯一的。
Quality issues may be the biggest deterrents to adopting AOSD methods, but they are not the only ones.
首先，有时候我们拖延并不是因为做享乐其中的事情而是做那些唯一诱惑之处就是它们不是我们应当在做的事情的那类工作。
In the first place, we often procrastinate not by doing fun tasks but by doing jobs whose only allure is that they aren't what we should be doing.
非也；所有的伟大的城市都激发着某种雄心，但是它们并不是唯一的地方。
No; all great cities inspire some sort of ambition, but they aren't the only places that do.
我相信我不是唯一这么做的人：我经常买市场上的某种产品仅仅是因为每次打开壁橱时看到它们会觉得很顺眼。
I'm quite sure I'm not alone when I admit that I often buy products at the market simply because I want to look at them each time I open my cupboard.
虽然它们是必不可少的，但是这些服务对手机来说并不是唯一的。
Although I find them indispensable, the services aren't unique to a mobilephone.
但蝙蝠有个共同点不是说它们唯一现存的飞行哺乳动物。
But what all bats have in common (other than being the only flying mammals in existence) are flexible wings that enable them to change directions quickly.
它们都是可以唤起人们感情的元素，但并不是唯一的。
They are all elements intended to stir the emotions, but they are not the only ones.
唯一笃信无疑的是，它们不是为尼日利亚而铸就的，因为这个国家连自己的一百周年纪念日都不会庆祝。
About the only thing that can be said with certainty is that Nok sculpture was not made for Nigeria, a country that has yet to celebrate its centenary.
唯一笃信无疑的是，它们不是为尼日利亚而铸就的，因为这个国家连自己的一百周年纪念日都不会庆祝。
About the only thing that can be said with certainty is that Nok sculpture was not made for Nigeria, a country that has yet to celebrate its centenary.
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