久久亚洲国产成人影院-久久亚洲国产的中文-久久亚洲国产高清-久久亚洲国产精品-亚洲图片偷拍自拍-亚洲图色视频

您現(xiàn)在的位置: Language Tips> Easy English> Odd Question  
 





 
Why do we blink our eyes?
[ 2006-02-13 08:30 ]
Blink  
Why do we blink our eyes? Notes:

Blinking, as opposed to batting, our eyes automatically supplies two forms of moisture to our eyes, to keep them from drying out, and to keep foreign matter from entering and irritating our eyes. Eyelids themselves, our built-in "wind-shield wipers," are merely folds of skin, controlled by muscles capable of expanding and contracting so rapidly, that blinking does not impair our vision. Mother Nature lined the rims of our eyelids with 20-30 sebaceous, oil-producing glands, which are located between our eyelashes, and are invisible to the naked eye. Blinking automatically coats the eyelid and eyelashes with the lubricant it secretes, to prevent them from drying out.

Blinking also protects the eye from dryness by irrigating, not by irritating, the eye, The eyelid, through suction, automatically draws the fluid we cry with from the well we refer to as the tear duct over the eyeball, to irrigate, and to moisturize the eye. The process is similar to the manner in which the farmer uses water to irrigate his crops during a dry spell.

Yet another benefit of blinking, is to shield the eye from foreign bodies. Our eyelashes, short, curved, hairs, attached to the eyelids, serve as dust-catchers, as the blinking reflex causes them automatically to lower, when exposed to harsh elements. Nature endowed the camel with extraordinarily long, curly, eyelashes, to protect his eyes from sudden sandstorms in the desert. Incidentally, the "camel eyelash" look is one many women attempt to duplicate by using an eyelash curler! Eyebrows, by the way, also serve their purpose, as they catch the run-off perspiration produces.

 
 
 
相關(guān)文章 Related Stories
 
 
 

本頻道最新推薦

     
  為什么下雪時(shí)天氣暖
  You are the smartest fish I've ever seen!
  Dog burger
  為什么老了脾氣好
  飛蛾為什么撲火

論壇熱貼

     
  開(kāi)個(gè)題目大家扯:hotel & restaurant
  追求某人
  請(qǐng)教工商年檢如何翻譯
  How to translate “中國(guó)老字號(hào)”into English?
  "港股直通車(chē)"怎么翻譯?
  兩免一補(bǔ)怎么說(shuō)?




主站蜘蛛池模板: 欧美日韩在线视频 | 三级中文字幕永久在线视频 | 免费91最新地址永久入口 | 亚洲免费在线播放 | 一区二区三区在线观看视频 | 久久日本精品一区二区免费 | 亚洲国产成人久久综合一区77 | 欧美成人免费午夜影视 | 免费看黄色片的网站 | 久草草视频在线观看免费高清 | 亚洲精品国自产拍在线观看 | 久草草视频在线观看免费高清 | 亚洲人成亚洲人成在线观看 | 欧美一级片a | 全国男人天堂网 | 亚洲一区 中文字幕 久久 | 日韩不卡一区二区三区 | 爱综合 | 国产一区二区三区成人久久片 | 欧美成人免费tv在线播放 | 亚洲偷| 精品一区二区三区高清免费不卡 | 久草视频大全 | 久久免费大片 | 一区二区三区免费视频网站 | 日韩性视频网站 | av人摸人人人澡人人超碰 | 日韩一区二区三区四区 | 久草资源在线 | 亚州中文 | 日韩亚洲一区中文字幕在线 | 日韩欧美一级 | 99久久免费精品视频 | 日本尹人综合香蕉在线观看 | 婷婷尹人香蕉久久天堂 | 欧美视频一区 | 特级aaaaaaaaa毛片免费视频 | 亚洲精品色一区二区三区 | 国产一级一片免费播放刺激 | 一机毛片 | 日韩精品毛片 |