| 释义 |
seasonal affective disorder
UK [ˌsi:.zən.əl.ə'fek.tɪv.dɪˌsɔ:.dər] US [-ˌsɔ:r.dɚ] (abbreviation SAD)
noun uncountable
■a medical condition in which a person does not have much energy and enthusiasm during the winter because of the reduced period of natural light 季节性情绪失调（指人在冬季时因日照缩短而表现出的抑郁） |