adj.头昏眼花的；三心二意的；无知的；轻浮的

light-headed───adj.头昏眼花的；三心二意的；无知的；轻浮的

lightheaded───adj.头昏眼花的；三心二意的；无知的；轻浮的

light-headedly───轻装上阵

light-hearted───快活的；轻松的

lightheadedly───轻松地

light-handed───巧手，熟练的手艺

lighthearted───adj.快乐的，心情愉快的；无忧无虑的

Sometimes you can wake up feeling groggy, light headed, and exhausted, even though you just got eight, nine, or even ten hours of sleep.───有的时候，即使你已经睡了八、九个小时，甚至是十个小时，早上起床时，你仍会觉得身子软弱无力，伴随着轻微的头痛，整个人好象都虚脱了。

If you feel light headed, lie down, preferably with feet elevated, until the feeling passes.───如果感觉头晕，躺下身体，脚部微微抬起，直到这种感觉消失。

If you feel light-headed or nauseous at anytime during the race, please do not hesitate to ask for assistance.───若您在比赛过程感觉到头昏眼花或晕眩作呕，请尽快要求协助。

The initial taste isn't those hot but now, a couple of minutes in a while, I feel a bit floaty and light -headed .───刚开端没觉得那么辣，可几分钟后，我就感到头重脚轻，有点晕乎乎的。

But those flying in 24-hour light headed straight towards the sun. They no longer had any sense of time.───但那些在24小时连续光照环境中的蝴蝶会一直朝着太阳飞去，它们完全失去了对时间的感觉。

Don't go thirsty. If you don't have enough to drink you can get light-headed, dizzy, headachy and a little confused.───别渴着如果你一天没有摄取足够的水，你就可能感觉头晕，头痛，还可能有些迷糊。

The air beneath the evergreen boughs was thick with a strange perfume, which made me feel dizzy, light-headed, and slightly nauseous.───常绿树（tree）下的空气中含着浓重的奇香，我觉得头晕目眩，有点（alittlebit）儿恶心。

If you are felling light-headed, get out of the pool and have someone spray some cold water on you.───如果您是砍伐恌，走出泳池和有人喷一些冷水您。