| 单词 | seasonal affective disorder |
| 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） |
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