| 单词 | extension |
| 释义 | extension[ik'stenʃən]n. 延长, 扩充, 范围, 扩展名a. 伸缩的【计】 扩展名, 扩充名【化】 伸长【经】 延期 extension ex.ten.sion AHD: [¹k-stµn“sh…n] D.J. [!k6sten.*n]K.K. [!k6stWn.*n]n.Abbr. ext.（名词）缩写 ext.1. The act of extending or the condition of being extended.伸展：伸展的行为或被伸长的状况2. The amount, degree, or range to which something extends or can extend:扩大，伸长：扩大或能扩大的数量、程度或范围：The wire has an extension of 50 feet.电线可伸长到50英尺3. The act of straightening or extending a limb.伸直：伸直或伸展肢体的行为4. The position assumed by an extended limb.伸肢定位：用伸出的肢体判断出的位置5. Medicine The application of traction to a fractured or dislocated limb to restore the normal position.【医学】 牵引，牵伸（术）：为使骨折或脱位的肢体恢复原位而进行的牵伸动作6. An addition that increases the area, influence, operation, or contents of something:扩大，增加：面积的增加、影响的扩大、功能的增强或某物内容的增多：an extension for the vacuum cleaner; built a new extension onto the hospital wing.真空吸尘器容量加大；向医院的一侧扩建7. An additional telephone connected to a main line.电话分机：一部连到主线上的增设电话8. An allowance of extra time, especially for the repayment of a debt.宽限：额外增加的时间，尤其为了还债9. The period of this extra time:宽限期：额外延长的期限：three months' extension on the loan.货款的三个月宽限期10. The property of an object by which it occupies space.财物：占据空间的物体的财产11. A program in a university, college, or school that offers instruction, as by television or correspondence, to persons unable to attend at the usual time or in the usual place.函授：在大学、学院或学校开设的一种课程，如通过电视或通信对那些不能在通常时间或在通常地点上课的人提供教育12. Logic The class of objects designated by a specific term or concept; denotation.【逻辑学】 外延，概说：用特定的词或概念来标明的学科种类；外延13. Mathematics A set that includes a given and similar set as a subset.【数学】 子集：包含一个给定的或相似的子集的集合n.attributive.（定语名词）Often used to modify another noun:常用于修饰另一个名词：an extension ladder; an extension cord.伸缩梯；延长线语源:1. Middle English extensioun 中古英语 extensioun 2. from Old French extension 源自 古法语 extension 3. from Latin ext¶nsi½ ext¶nsi½n- 源自 拉丁语 ext¶nsi½ ext¶nsi½n- 4. from ext¶nsus [past participle of] extendere [to extend] * see extend 源自 ext¶nsus [] extendere的过去分词 [伸展] *参见 extend继承用法:exten“sional adj.（形容词） |
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