xerosis

例句：

1. 1. The desert climate is characterized by extreme dryness.
   沙漠气候特征是极端干燥。
2. 2. The body's natural response to dehydration is to retain water in the tissues.
   身体对脱水的自然反应是将水分保留在组织中。
3. 3.During the long drought, many plants were unable to survive due to dehydration.
   长时间的干旱导致许多植物因脱水而无法生存。