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词汇 tooth
释义 tooth AHD[to͞oth] D.J.[tuːθ]K.K.[tuθ]n.(名词)【复数】 teeth[tēth] Carlyn Iverson
    1. One of a set of hard, bonelike structures rooted in sockets in the jaws of vertebrates, typically composed of a core of soft pulp surrounded by a layer of hard dentin that is coated with cement or enamel at the crown and used for biting or chewing food or as a means of attack or defense.牙,齿:脊椎动物上下颚的槽臼中扎根的一排坚硬,骨状物体,典型的结构是中间为一软体,后面包围着一层坚硬的牙本质,牙本质外为一由钙质或采釉质组成的牙冠,牙齿可用来撕咬或咀嚼食物,还可用作进攻或防御的工具
    2. A similar structure in invertebrates, such as one of the pointed denticles or ridges on the exoskeleton of an arthropod or the shell of a mollusk.(其他动物的)齿:非脊椎动物的类似器官,例如节肢动物的外骨骼或软体动物的外壳上的尖锐小齿或小突起
    1. A projecting part resembling a tooth in shape or function, as on a comb, gear, or saw.类齿物:在形状或功能上与牙齿相近的突出部分,例如梳子、齿轮或锯子上的
    1. A small, notched projection along a margin, especially of a leaf. Also called dent 2齿状突出:物体边缘呈V形的狭小突出,尤指树叶的 也作 dent2
    1. A rough surface, as of paper or metal.粗糙表面:粗糙表面,如纸张或金属的
    1. Something that injures or destroys with force. Often used in the plural:毁灭力量:用武力进行伤害或毁灭的东西。常常用作复数:the teeth of the blizzard.暴风雪的毁灭力量
    2. teeth Effective means of enforcement; muscle: teeth 决定手段,力量:实现目的的有效手段;肌肉:"This . . . puts real teeth into something where there has been only lip service"(Ellen Convisser)“过去这件事不过口头说说而已,现在这样做就有解决的力量了”(埃伦·康维瑟)
    1. Taste or appetite:口味,食欲:She always had a sweet tooth.她总有很好的口味
v.(动词)toothed, tooth.ing, tooths[to͞oth, to͞oY] v.tr.(及物动词)
    1. To furnish (a tool, for example) with teeth.给(例如工具)安装齿状物
    1. To make a jagged edge on.使成齿状
v.intr.(不及物动词)
  1. To become interlocked; mesh.啮合:咬合在一起;融合
Idioms习惯用语get (one's) teeth into sink (one's) teeth into 【俚语】
  1. To be actively involved in; get a firm grasp of.积极地参与其中;牢牢地抓住
show (one's) teeth bare (one's) teeth
  1. To express a readiness to fight; threaten defiantly.示威:表现准备战斗;凶狠地进行威胁
to the teeth
  1. Lacking nothing; completely:全副地:不缺少任何东西的;全部地:armed to the teeth; dressed to the teeth.武装到牙齿;全副打扮
Etymology语源
    1. Middle English 中古英语
    1. from Old English tōth * see dent- 源自 古英语 tōth * 参见 dent-
注释
  1. Eating, biting, teeth, and dentists are all related, as is well known,but the relationship goes further than one might think,that is, into the roots of the wordseat, tooth, and dentist. The Proto-Indo-Europeanroot.ed-, meaning "to eat" and the source of our wordeat, originally meant "to bite.” A participial form of.ed- in this sense was .dent-, "biting,” which came to mean "tooth.”Our wordtooth comes from .dont-, a form of.dent-, with sound changesthat resulted in the Germanic word.tanthuz. This word became Old Englishtōth and Modern English tooth. Meanwhile the Proto-Indo-European form.dent- itself became in Latin dēns (stem dent- ), "tooth,”from which is derived our worddentist. We find a descendant of another Proto-Indo-European form·(o)dont- in the word orthodontist. 我们都知道吃、咬、牙齿、牙医都是紧密相联的,但它们之间的关系比我们所想象的还有紧密,甚至eattoothdentist 的词根也互相联系。 在原始的印欧语系中,词根ed- 的意思是“吃”, 我们的eat 这个词的原意是“咬,啃”。 作为这个意思的-ed 的分词形式是 dent- ,意为“咬”, 后来转变成“牙齿”的意思。现在tooth 这个词来源于 dont-dent- 的一个变形, 随着声音的变化,这个词在日耳曼语言中成了tanthuz 。 然后,由这个词产生了古英语的toth 和现化英语的 tooth 。 同时dent- 这一原始印欧词语在拉丁语中变成了 dens (词根 dent- ), 意为“牙齿”,由此衍生出dentist 这个词。 在orthodortist 这个词中,我们可以发现,这个原始印欧语言的另一形式 (O)dont- 的踪影
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