| 单词 | to top out | 
| 释义 | > as lemmasto top outto top out  1.  transitive. To add the final element to the top of (a structure); (now) spec. to put the final, highest structural feature on (a building), typically as a ceremony marking the building's completion. Cf. topping-out ceremony. ΘΚΠ the world > action or operation > completing > complete (an action or piece of work)			[verb (transitive)]		 > put the finishing touch to fine1387 crown1509 finish1551 to top out1834 top1892 the world > action or operation > completing > complete (an action or piece of work)			[verb (transitive)]		 > put the finishing touch to > specific to a building to top out1834 society > occupation and work > industry > building or constructing > building or providing with specific parts > build or provide with specific parts			[verb (transitive)]		 > roof > put finishing touches on roof to top out1834 1828    N.-Y. Amer. 15 Mar.  				The house, we understand, was a log building, with a stone chimney topped out with boards, after the old fashion. 1834    W. Sewall Diary 22 Dec. 		(1930)	 160  				Topped out house chimney, and went to saw mill. 1962    Engineering 16 Nov. 640  				The dome was ‘topped out’ on 2 November. 1979    Guardian 25 July 3/2  				Britain's most expensive new homes in Knightsbridge, London, were ‘topped out’ at a champagne reception yesterday. 2014    Sydney Morning Herald 		(Nexis)	 1 Nov. (Real Estate section) 44  				Brookfield Multiplex, the developer of the centre, recently ‘topped out’ the roof structure of the first stage of the expanded mall.  2.  transitive. U.S. To complete or fill up (a load, cargo, etc.). Also intransitive with the ship as subject (cf. to top off 3b at  Phrasal verbs). Now rare. ΘΚΠ society > travel > travel by water > transportation by water > transport by water			[verb (transitive)]		 > load or unload cargo > load a ship or a cargo > fill up or complete cargo to top out1940 society > travel > travel by water > transportation by water > be transported by water			[verb (intransitive)]		 > load > fill up or complete cargo to top off1937 to top out1940 1854    Ohio Observer 		(Hudson, Ohio)	 12 Apr. 112/3  				Fill the box topping out with another peck of shorts and another half bushel turnips. 1905    Terms Forestry & Logging (Bull. U.S. Dept. Agric., Bureau Forestry, No. 61) 35  				Double header, a place from which it is possible to haul a full load of logs to the landing, and where partial loads are topped out or finished to the full hauling capacity of teams. 1940    Sun 		(Baltimore)	 16 Apr. 24/6  				Preparations were being made to tow her into the stream to ‘top out’ a 12,500-ton cargo. 1941    Sun 		(Baltimore)	 24 June 22/4  				Every ship..‘topped out’ with scrap, if there was any room left. 1964    Fairbanks 		(Alaska)	 Daily News-Miner 26 May 4/1  				Topping out more than a shipload of building materials was an outright gift of an International crawler tractor.  3.  intransitive. To reach the top of a hill or mountain; (Rock Climbing) to complete a route by ascending on to or over the top of the structure being climbed. Also occasionally transitive, with the route or structure as object. Cf. summit v.2 2. ΚΠ 1918    R. Beach in  Cosmopolitan Feb. 31/1  				We'll top out before dark, if we hurry... It was a long pull back up the cañon-side. a1948    A. Leopold Sand County Almanac 		(1949)	  ii. 123  				In winter the top of the mountain was denied even to horsemen... Soon thereafter you could ‘top out’—if your horse had the heart to climb half a day. 1989    Guardian 1 Mar. 24/8  				As Mr Reid and I top out from Coire an t-Sneachda's Red Gully climb, the blizzard screaming across the plateau prevents all conversation. 2004    Stanford Alpine Jrnl. 34  				We topped out the route but did not summit the peak. 2006    Vertical Dec. 17/1  				They then decided to sit it out under the stars on an unplanned bivi with no gear and topped out the following day.  4.  intransitive. To reach an upper limit or greatest extent. Cf. to bottom out 2. ΘΚΠ the world > relative properties > quantity > increase in quantity, amount, or degree > 			[verb (intransitive)]		 > to highest degree > reach highest degree of increase to grow to a head1579 to gather to a heada1616 to come to a head1655 culminatea1662 climax1882 to reach a crescendo1925 to top off1970 to top out1972 1961    Financial Times 6 Mar. 17/6  				The recession has stayed shallow partly because the boom topped out at a relatively early stage. 1972    Guardian 24 June 10/6  				World population, he says, will probably top out at 10,000 millions sometime in the twenty-first century. 2015    N.Y. Times Mag. 15 Feb. 12/2  				Most commercially available drones top out at about 15 or 20 minutes of flying time on a single charge. That air time diminishes significantly when a payload is attached. < as lemmas | 
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