《黄帝内经·灵枢·刺节真邪》
天气寒冷，则地冻结，水成冰；人体阳气沉伏于内，则皮肤密致，腠理闭合，汗液不出，血气凝滞，肌肉坚涩。
寒则地冻水冰，人气在中，皮肤致，腠理闭，汗不出，血气强，肉坚涩。
When the weather is cold, the earth freezes and the water turns into ice; when the yang qi of the human body sinks inward, the skin becomes dense, the pores close, sweat does not come out, the blood and qi stagnate, and the muscles become hard and dry.
<s>[INST] 对于下列每组文言文和现代汉语句子, 请提供一个能够准确表达两者本质的英语翻译: 文言文: 寒则地冻水冰，人气在中，皮肤致，腠理闭，汗不出，血气强，肉坚涩。 现代汉语: 天气寒冷，则地冻结，水成冰；人体阳气沉伏于内，则皮肤密致，腠理闭合，汗液不出，血气凝滞，肌肉坚涩。 [/INST] When the weather is cold, the earth freezes and the water turns into ice; when the yang qi of the human body sinks inward, the skin becomes dense, the pores close, sweat does not come out, the blood and qi stagnate, and the muscles become hard and dry.</s>
对于下列每组文言文和现代汉语句子, 请提供一个能够准确表达两者本质的英语翻译: 文言文: 寒则地冻水冰，人气在中，皮肤致，腠理闭，汗不出，血气强，肉坚涩。 现代汉语: 天气寒冷，则地冻结，水成冰；人体阳气沉伏于内，则皮肤密致，腠理闭合，汗液不出，血气凝滞，肌肉坚涩。
user
When the weather is cold, the earth freezes and the water turns into ice; when the yang qi of the human body sinks inward, the skin becomes dense, the pores close, sweat does not come out, the blood and qi stagnate, and the muscles become hard and dry.
assistant