lethargy
noun [ U ] uk/ˈleθ.ə.dʒi/ us/ˈleθ.ɚ.dʒi/
没精打采，懒散;无生气，呆滞
the feeling of having little energy or of being unable or unwilling to do anything
Symptoms include loss of appetite, lethargy, and vomiting. 症状包括食欲不振、昏昏欲睡和呕吐。
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