不习水土

Explanation: Learning: habits, to adapt. A place that can not adapt to the climate conditions or eating habits 　　Usage: Verb-object type; for the predicate; with "acclimatized" 　　Source: Jin Chenshou "Zhou Yu Chuan Wu of the Three Kingdoms": "Yuanshe public arena who drive between China, was not a soil and water, must be borne diseases." Thesaurus:  cannot adapt readily to the place; not acclimatized, climate sickness