Working to optimize each of these five components of fitness is crucial to enhancing your overall fitness and general health.
努力优化这五个健康要素中的任何一个，对加强你的全面健康和一般健康都是至关紧要的。
If that's not enough to appeal to your appetite, consider this: Increased energy naturally improves your mood. Try these five energy-enhancing snacks for a happy high.
试一试下面五种零食，它们不仅能激起你的食欲，而且能在补充能量的同时自然而然地提升你的情绪，带给你愉悦的心情。
Finally, this paper introduces five different tactics for enhancing community attachment to educational virtual community.
最后，从五个方面阐述了社区归属感的增强策略。
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