During outdoor activities, they should be protected from high UV exposure as above, and babies should always remain in the shade.
在进行户外活动时，应如上所述，保护他们避免紫外线高度暴露。婴儿应始终呆在阴凉处。
2
But no evidence demonstrates that the duration of outdoorexposure - in places where people can move freely about - is long enough to cause substantial health damage.
但还没有证据表明，当人在户外自由移动时，身体接触到的烟气的残余，确实多得能够伤害健康。
3
Cold exposure can make outdoor activity uncomfortable or even dangerous for anyone unprepared for extreme weather.