[参考译文]到户外晒晒太阳是有益的,但过分在阳光下曝晒,你的身体将会面临危险。出汗可以使身体降温,但如果天气过热,大量出汗就会失去过多水分和盐而导致炎热状态下的浑身无力。其症状为大量淌汗、疲劳、恶心、呕吐、晕眩、头痛及痉挛,这时你应该在阴凉的地方休息一下,喝几口凉的、微咸的饮料。 It is useful to suntan outdoors, but if exposed to sunlight, your body will be at risk. Sweating can cool the body, but if the weather is too hot, a lot of sweat will lose too much water and salt and cause the body to become weak under hot conditions. The symptoms are a lot of sweat, fatigue, nausea, vomiting, dizziness, headaches and cramps. At this time, you should take a rest in a cool place and drink a few cool, salty drinks.