| 单词 | retractible | 
| 释义 | retractibleadj. 1.  = retractable adj.2 1. ΘΚΠ the world > movement > impelling or driving > pushing and pulling > 			[adjective]		 > relating to or used in pulling > pulling back > pulled back > able to be retractable1769 retractible1808 1808    Repertory of Arts 2nd Ser. 		(ed. 2)	 5 201  				The female of this insect is furnished with a flat, retractible tube..which she inserts..between the bark and the wood. 1817    Amer. Monthly Mag. & Crit. Rev. Nov. 46/1  				Five toes to the forefeet, four to the hind feet, connected by a loose skin, and with sharp retractible nails. 1867    Amer. Naturalist 1 12  				The larger tentacles are retractible, that is, they have the power of withdrawing within the head. 1939    Olean 		(N.Y.)	 Evening Times 6 Sept. 7/5  				This type of landing gear is known as a retractible landing gear. 1967    Times 14 Dec. 11/2  				A dam across the river would serve both purposes and might, therefore, be more attractive to the Treasury than a retractible barrier which would be slid into place only in moments of danger. 2007    Prince George 		(Brit. Columbia)	 Citizen 		(Nexis)	 24 Aug. 52  				Some of these vehicles come complete with a built in sunroof, moon roof, and a five piece retractible roof.  2.  = retractable adj.2 2. ΘΚΠ the world > movement > impelling or driving > pushing and pulling > 			[adjective]		 > relating to or used in pulling > pulling back > pulled back > having a retractable part retractable1947 retractible1947 1947    Syracuse 		(N.Y.)	 Herald-Jrnl. 15 Dec. 34/1 		(advt.)	  				Retractible pens. 1955    Billboard 8 Oct. 82/4 		(advt.)	  				Beautiful single retractible pens. 1994    Philadelphia Inquirer 		(Nexis)	 2 July  a1  				Six weeks before the murders, [he] bought a 15-inch retractible knife with a six-inch blade. 2008    N. Young Unlock your Child's Learning Potential 182  				He can also use a pencil with a broken point or a retractible pen to ‘write’ the word on sandpaper. This is a new entry (OED Third Edition, March 2010; most recently modified version published online March 2022). < | 
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