| act of expanding in scope; making more widely available; "extension of the program to all in need"
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| act of stretching or straightening out a flexed limb
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| an educational opportunity provided by colleges and universities to people who are not enrolled as regular students
同义词：extension service, university extension,
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| an addition that extends a main building
同义词：annex, annexe, wing,
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| an addition to the length of something
同义词：elongation,
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| an additional telephone set that is connected to the same telephone line
同义词：telephone extension, extension phone,
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| amount or degree or range to which something extends; "the wire has an extension of 50 feet"
同义词：lengthiness, prolongation,
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| the ability to raise the working leg high in the air; "the dancer was praised for her uncanny extension"; "good extension comes from a combination of training and native ability"
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| the most direct or specific meaning of a word or expression; the class of objects that an expression refers to; "the extension of `satellite of Mars'' is the set containing only Demos and Phobos"
同义词：reference, denotation,
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| the spreading of something (a belief or practice) into new regions
同义词：propagation,
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| a string of characters beginning with a period and followed by one or more letters; the optional second part of a PC computer filename; "most applications provide extensions for the files they create"; "most BASIC files use the filename extension .BAS"
同义词：filename extension, file name extension,
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| a mutually agreed delay in the date set for the completion of a job or payment of a debt; "they applied for an extension of the loan"
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| 1. | His fantasies found extension in reality .
他的幻想可以在现实中延伸。
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| 2. | Extension of the injured arm was painful .
把受伤的胳膊伸展开是很疼的。
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| 3. | He has got an extension to finish writing his thesis .
他获准延期交论文。
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| 4. | There are telephone extensions in every office .
每间办公室都有电话分机。
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| 5. | The note supplied a phone number and extension .
便笺上写着电话和分机的号码。
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| 6. | The civil war forced extension of the use of machinery .
南北战争促进了机器的普及。
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| 7. | The leg is now at full extension .
现在腿已完全伸直。
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| 8. | She has an extension in the kitchen and in the bedroom .
她的厨房和卧室都有电话分机。
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| 9. | Haldeman's staff acted as an extension of haldeman .
霍尔德曼的工作人员都是他的耳目。
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| 10. | Soil compaction may limit horizontal root extension .
土壤的紧密度能限制水平根的扩展。
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