| 词汇 | seasonal affective disorder |
| 释义 | seasonal affective disorderBrE /ˌsiːzənl əˈfektɪv dɪsɔːdə(r)/ NAmE /ˌsiːzənl əˈfektɪv dɪsɔːrdər/ noun [U ] (abbreviation SAD ) a medical condition in which a person feels sad and tired during late autumn /fall and winter when there is not much light from the sun 季节性情感障碍（秋冬两季因白昼缩短而易发作的抑郁症） |
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