不服水土

Explanation: Can not adapt to the climate and moved to the local diet. 　　Usage: Verb-object type; as the predicate attribute; describe suited to the field of climate and diet 　　Source: Xun Yue Han "Han Ji Wudi Ji": "China's people, I do not know the terrain, soil and water can not be served." 　　Examples: I long labor in the foreign soldiers, ~, is bound to produce disease. Should call the military also, after further plans. (Ming Luo, "Three Kingdoms" the first 20 back) Thesaurus:  climate sickness, Was not a land and water