droop

verb

1. （尤指因衰弱或疲劳）低垂，垂落，垂下
   to bend, hang or move downwards, especially because of being weak or tired
   1. She was so tired, her eyelids were beginning to droop.
      她太疲倦了，眼睑开始往下垂。
2. 沮丧；消沉；垂头丧气
   to become sad or depressed
   1. Our spirits drooped when we heard the news.
      听到这消息，我们情绪低落下来。

1. VERB 低垂;下垂;垂落
   If something droops, it hangs or leans downwards with no strength or firmness.
   1. Crook's eyelids drooped and he yawned...
      克鲁克的眼皮耷拉下来,打了个哈欠。
   2. Pale wilting roses drooped from a blue vase.
      泛白凋零的玫瑰从蓝色的花瓶里耷拉下来。
   3. ...a young man with a drooping moustache.
      蓄着八字胡的年轻人
   4. Droop is also a noun.
      
   5. ...the droop of his shoulders.
      他肩膀耷拉着

1. Crook's eyelids drooped and he yawned
   克鲁克的眼皮耷拉下来，打了个哈欠。
2. Pale wilting roses drooped from a blue vase.
   泛白凋零的玫瑰从蓝色的花瓶里耷拉下来。
3. If a wretched man has a vice, it shows itself in the lines of his mouth, and droop of his eyelids, and even the moulding of his hands.
   如果哪个倒霉鬼犯了罪，罪行会在他口角的纹路、下垂的眼睑、甚至手的形状上显示出来。
4. When my love comes and sits by my side, when my body trembles and my eyelids droop, the night darkens, the wind blows out the lamp, and the clouds draw veils over the stars.
   当我爱来了，坐在我身旁，当我的身躯震颤，我的眼睫下垂，夜更深了，风吹灯灭，云片在繁星上曳过轻纱。
5. When the flowers droop in the evening and cattle come back to their stalls, you stealthily come to my side and speak words that I do not understand.
   当花儿晚谢，牛儿归棚，你偷偷地走到我身边，说出我不了解的话语。
6. Everybody hunch their backs forward and droop their heads, like this, he said, demonstrating.
   请大家弓起后背并低头，就像这样，他一边说一边亲身示范。
7. My spirits droop at theprospect of work on monday.
   想到星期一要工作，我便兴致不高。
8. Life in the sunshine is so exhilarating that we seldom notice our faith beginning to droop.
   生活在艳丽的阳光下，会让我们很兴奋，以致于没注意到，我们的信心可能正在加速的消失；
9. See how they hang their heads and droop, and wither.
   看！它们不是低着头，弯下腰，就要枯萎了吗？
10. Once the cup is knocked down, the valve plates arranged on the upper part of the water stop structure droop and closes with the gravity, thereby preventing the water from flowing out.
    如果，一旦有人将其碰倒，止水结构中处于上部的阀片，将由于重力的作用，下垂关闭阀口，制止水的流出。
11. Droop, sink, or settle from or as if from pressure or loss of tautness.
    因为压力或失去拉紧的力而低垂、下沉或下陷。
12. Pluck this little flower and take it, delay not! I fear lest it droop and drop into the dust.
    请摘下这朵小花，带走吧，不要迟疑！我怕它会凋谢，会跌落尘埃。
13. Edmond could feel again the folds of the girl's soft white gown, and see the droop of the angel-sleeves as she circled her fair arms about his neck.
    埃德蒙再一次感觉到她柔软的白色睡衣的皱褶，和她环绕着他的脖子白皙的胳膊，犹如天使翅膀般下垂着的衣袖。
14. Wisps of them lead or droop because there must always be leading and drooping.
    因为他们必须总是被拉扯弯曲和被引导的，所以云幻化成一缕缕的。
15. His eyelids began to droop.
    他的眼睑开始下垂了。
16. In the droop of her lip there was something sensuous.
    在她那下垂的嘴唇上的确有点儿敏感的意味。
17. Readjustment, restructuring, consolidation and improvement The governor must have provision for adjusting speed ( generator frequency) and speed droop ( no load to full load).
    调整、改革、整顿、提高调速器必须具备转速调整（电机频率）降速降调整（负荷到满负荷）能。
18. Outer loop of UPFC bus voltage control system adopts voltage droop control that consists of PI regulation and scaling factors of droop characteristic.
    外特性下垂并联控制方法主要有两种实现形式：负载电流前馈方式和减弱电压控制环方式。
19. As we have seen, the effects of such actions were not to make the people of North China droop, but rage;
    正如我们所看到的，这些倒行逆施并没有使华北人民屈服，反而激起了他们的仇恨。
20. The Wireless Parallel Control Technology Based on Modified Droop Chracteristic
    基于改进下垂特性的无互连线并联控制技术研究
21. To hang or let hang loosely; droop.
    耷拉松散地挂或使松散地挂；耷拉。
22. His chest heaved and his body seemed to droop.
    他的胸脯上下起伏，身子也好象衰颓了。
23. Remember, your first aim is not to droop the ball and your second aim is not to look at the ball.
    记住，你的第一个目标是不能掉球，第二个目标是带球时不能看球。
24. Paralysis of the mouth-the corner of the mouth may droop and saliva may dribble from it and speech may be slurred.
    嘴巴会麻痹&嘴角可能会下垂唾液可能会从嘴角流出而且会口齿不清。
25. Pulses have fast rise and fall times, and minimal droop.
    脉冲能迅速上升和下降，减少误差。
26. Paralleling Control Technique of Microgrid Inverters Based on Improved Droop Method
    基于改进下垂法的微电网逆变器并联控制技术
27. See her mouth droop; and she breathes as if the devil were choking her.
    瞧她下耷的嘴巴，瞧她呼吸得那么费劲，就像魔鬼正在卡住她的喉管。
28. I can see you're tired because your eyelids have started to droop.
    我能够看出你很疲倦，因为你的眼皮都开始打架了。
29. As I have a bit dry in the heart of some of its inadequacies are all bits and pieces of the droop.
    就如我显得有些干涸的心脏，枝枝节节都有些力不从心的耷拉。
30. When the fuse is blown out, the rotary link piece and the lower moving contact droop to indicate failure occurrence.
    当熔丝熔断时，转动连片和下动触头下垂，即可显示发生故障。

noun

1. a shape that sags
   1. there was a sag in the chair seat

   Synonym:    sag

verb

1. become limp
   1. The flowers wilted

   Synonym:    wilt

2. droop, sink, or settle from or as if from pressure or loss of tautness

   Synonym:    sagswagflag

3. hang loosely or laxly
   1. His tongue lolled

   Synonym:    loll