在日常生活中,我们往往可以看到、听到或者亲身感受到有一种所谓“水土不服”的现象。例如,城市里的人刚到农村,有的会皮肤出现疹块,浑身瘙痒,甚至会有胃纳不佳、便秘等情况;而农村的人初到城市,喝了城市里的自来水,有的也会身上出现红点等过敏现象。又比如,生活在南方的人,初到北方,在气候上感到不习惯,皮肤干,嘴唇裂,要过一段时期才能慢慢适应。 In daily life, we can often see, hear or feel for ourselves the phenomenon of “acclimatization”. For example, people in the city just arrived in rural areas, and some have rashes on the skin, and it may be itchy. There may even be poor appetite and constipation. People in rural areas come to the city and drink tap water from the city. Red dots and other allergies will also appear on the body. For another example, people living in the South, when they first arrived in the North, were unaccustomed to the climate, had dry skin and cracked lips, and it took a while to adapt.