牙齿基本解释

汉语拼音:yá chǐ

人和高等动物用于咀嚼食物的器官。生长在颌骨上,高度钙化,外层有釉质,比骨组织更坚硬。人在一生中两次萌出牙齿。第一次萌出的为乳牙。再次萌出的为恒牙。根据位置、功能和形状,牙齿分为切牙(门牙)、尖牙(犬牙)、双尖牙(前磨牙)、磨牙(臼齿)等四个类型。每个牙齿包括牙冠、牙颈和牙根三部分。

牙齿详细解释

  1. 人类和某些动物口腔内外的、具一定形态的高度钙化的坚硬组织。有撕咬、咀嚼功能。一般为多枚,亦有两枚者。

    三国 魏 曹丕 《十五》诗:“号羆当我道,狂顾动牙齿。” 宋 陆游 《雨夜南堂独坐》诗:“老夫眼暗牙齿疏,七十未满六十餘。” 鲁迅 《坟·从胡须说到牙齿》:“听说牙齿的性质的好坏,也有遗传的。”

  2. 俗称齿轮的轮齿或螺纹的剖面为牙齿。

牙齿双语翻译,牙齿在线翻译例句

    • When not removed, plaque causes tooth decay and gum disease.

      牙斑如果不清除就会导致牙齿蛀蚀和牙龈疾病。

    • Monica picked up her Biro and revolved it between her teeth.

      莫妮卡拿起她的伯罗圆珠笔,放在牙齿间转动着。

    • His teeth clicked as he snapped at my ankle.

      它猛地朝我的脚脖子咬下去,牙齿还咔咔直响。

    • The dentist commenced to dig, drill and finally fill the offending tooth.

      牙医开始在那颗有问题的牙齿上挖洞,钻孔,直到最后把它补好。

    • The bear exposed its teeth in a muffled growl.

      那只熊龇出牙齿,发出一声低沉的吼叫。

    • Deposits of plaque build up between the tooth and the gum.

      牙齿和牙龈之间会滋生牙斑。

    • A tooth which has been hit hard may discolour.

      受过重击的牙齿可能会变色。

    • Her scarlet lipstick emphasized the whiteness of her teeth.

      她鲜红色的口红更衬出了她牙齿的洁白。

    • Thoroughly brush teeth and gums twice daily.

      每天两次彻底刷净牙齿和牙龈.

    • His teeth were perfectly straight.

      他的牙齿非常整齐.

    • She had very pretty straight teeth.

      她有一口漂亮整齐的牙齿。

    • The officer's mouth opened, showing white, even teeth.

      那个军官咧开嘴,露出洁白整齐的牙齿。

    • Sugar is the destroyer of healthy teeth.

      糖可以危害健全的牙齿。

    • He smiled suddenly, exposing a set of amazingly white teeth.

      他突然一笑,露出一口雪白的牙齿。

    • a perfect set of teeth

      一副完美的牙齿