低垂的英文：
droop
vail

参考例句：

lowering storm-clouds covered the sky
孕育着风暴的黑云低垂，布满天空

Dark clouds were bearing down, and heavy rain would come soon.
云幕低垂，大雨就要来临。

Her eyes dropped to her lap.
她双目低垂，看着自己的腿。

She came straight for me, with her horns low
它牛角低垂，向我直扑过来。

Her eyes fell before his steady gaze.
在他的逼视下，她双目低垂。

They have lopped away the biggest of the branches of that elm overhanging the road.
他们把那棵榆树低垂在公路上的最大的枝子砍掉了。

The villagers have lopped away the biggest of the branches of that elm overhanging the road.
村民们把那棵榆树低垂在公路的最大的枝子砍掉了。

The man was led out, walking unsteadily, with head sunken, nursing his crushed hand, all the fight had gone out of him
那个人给带了出去，走路摇摇晃晃，脑袋低垂，捧着他给踢伤的手，一点劲儿都没有了。

but her long, shadowy lashes drooped discreetly over the jollity of the lower part of the face as though to call a halt
但是她那双迟疑的睫毛蔼然低垂在冶艳的面容上，又仿佛是在说着“行不得也哥哥”一样。

Antonia had dropped her gaze; her face regained its languor, but the bosom of her dress was heaving
安东妮亚的眼光已经低垂下去;她脸上又浮现出那种无精打采的神色，但是她胸前的衣服却在一起一伏。

droop是什么意思：
v. （使）低垂，弯曲；枯萎；（使）颓丧
n. 下垂；消沉

To cause to droop or lose freshness.
使软垂，使枯萎，使调谢。

The flowers drooped in the hot sun.
花儿晒蔫了。

The pennant floats or droops in breeze or calm.
三角旗有风时飘扬，无风时下垂。

Their spirits drooped as they watched their team lose.
当他们看他们的球队输了时，他们感到丧气。

I saw the droop of his shoulders.
我看见他肩膀耷拉着。

vail是什么意思：
v. 脱;丢下;低垂