| 单词 | to round down |
| 释义 | > as lemmasto round down to round down 1. transitive. To make round in shape or form esp. by removing material; to wear away (something) so as to produce a rounded shape. Also figurative. ΚΠ 1786 C. Hutton Tracts Math. & Philos. ix. 111 The lower side of the edges of the axis was sharpened off a little,..and made to turn in hollow grooves, which were rounded down at both ends. 1820 R. Monteath Forester's Guide xxxi. 200 Dress the stool with an adze, rounding it down from the centre, close to the surface of the ground. 1888 Amer. Jrnl. Archæol. 4 43 The union might have been made by rounding down the capital to meet the shaft, or by a rounding up of the shaft to meet the capital. 1936 Manch. Guardian 1 Jan. 13/1 As time went by and the sharpness of those old controversies began to get rounded down. 2006 M. Owens in M. Owens & D. Owens Secrets of Savanna (2007) xxiii. 182 The feet of too many cattle had stomped the meadow to dust and rounded down the creek's once proud banks. 2. intransitive. Nautical = overhaul v. 1. Now rare. ΘΚΠ society > travel > travel by water > other nautical operations > [verb (transitive)] > work ropes or cables in specific ways windc1550 veer1590 veer1604 rousea1625 heave1626 overhaul1626 ease1627 pay1627 reeve1627 unbend1627 to come up1685 overhale1692 to pay away1769 surge1769 render1777 to pay out1793 to round down1793 to set upon ——1793 swig1794 veer1806 snake1815 to side out for a bend1831 rack1841 snub1841 1793 R. H. Gower Treat. Theory & Pract. Seamanship vii. 71 Round down upon the lee-top-sail-haliards till the weather fly-block is high enough to bring the sail up over the guard-iron. 1860 A. H. Alston Seamanship ii. 169 Round down on the lower halyards. 1937 A. M. Knight Mod. Seamanship (ed. 10) 814/1 Round down, to overhaul a tackle so that the lower block will come down. 2000 R. Mayne Lang. Sailing 240 To round down is to overhaul a suspended tackle. 3. transitive. To decrease (a number) when rounding it by making no alteration to its remaining digits, or by expressing it as the next lower round number. Also intransitive. Cf. sense 15. ΘΚΠ the world > relative properties > number > mathematical number or quantity > change a number or quantity [verb (transitive)] > approximate round1840 to round off1862 to round up1874 to round down1948 1948 Amer. Sociol. Rev. 13 13 They did not know their exact age and perhaps rounded it down to a 30 from 31 or 32. 1971 Daily Tel. 9 Nov. 14 It is Post Office practice for telephone bill totals ending in ½p to be rounded down to the nearest whole penny. 1995 Independent on Sunday 17 Dec. 52/4 Twenty years after decimalisation, cookery writers still have to be if not bilingual, biquantifing, rounding-up and rounding down as they translate from one code to the other. 2001 D. Stevenson Beggar's Benison i. 8 4004 BC was widely accepted as the date of the Creation of the world, but the freemasons found calculation somewhat easier if they rounded the figure down to 4000. < as lemmas |
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