droop
/dru:p; drup/ v [I, Ipr, Ip]
bend or hang downwards through tiredness or weakness （因疲倦或衰弱）弯曲或下垂; 发蔫
flowers drooping for lack of water 因缺水而发蔫的花
Her head drooped sadly. 她悲伤地低著头.
(fig 比喻) His spirits drooped at the news, ie He became sad. 那消息使他情绪低落.