仅有排气孔的冷却垫也能促进笔记本电脑周围的空气流动，而且便于携带，但是如果需要更强力的冷却效果，风扇是最好的方法。
Laptop pads that have vents but no fans can also increase the air flow around your laptop and they're very portable, but for stronger cooling needs, a fan is the best way to go.
它与现金功能相似，便于携带，而且安全性高。
It has the similar function with cash and is very convenient to carry and quite safe.
你可以专门关注运动员专用的防晒霜，例如非油性喷雾，它不仅便于携带而且干得很快，不会流进眼睛。
You can also look specifically for sunscreens made for athletes, such as a non-greasy spray that is not only convenient to carry with you, but also dries quickly so that it won't run into your eyes.
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