downcast，dejected，crestfallen，dispirited ；

[例句] 同样的交谈能让外向者荣光焕发,却让内向者精神颓靡. The same conversation that energizes the extravert also drains the introvert.

[例句] “双妹”的包装和广告令人想起旧上海所有颓靡的画面. Its packaging and advertising conjures visions of old Shanghai, in all its decadence.

sag ；

[例句] 很多人都期望他能使该国萎靡的政治体系振作起来。 Many hoped he would renew the country's atrophied political system.

[例句] 他们未能让她从萎靡消沉中振作起来。 They failed to revive her sagging spirits.

[书] （华丽； 奢华） magnificent，resplendent ；

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