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useful 音标拼音: [j'usfəl] a. 有用的,有益的,有帮助的 有用的,有益的,有帮助的 useful 有用 useful adj 1: being of use or service; "the girl felt motherly and useful"; "a useful job"; "a useful member of society" [synonym: {useful}, {utile}] [ant: {useless}] 2: having a useful function; "utilitarian steel tables" [synonym: {utilitarian}, {useful}] Useful \Use"ful\, a. Full of use, advantage, or profit; producing, or having power to produce, good; serviceable for any end or object; helpful toward advancing any purpose; beneficial; profitable; advantageous; as, vessels and instruments useful in a family; books useful for improvement; useful knowledge; useful arts. [1913 Webster] To what can I useful! --Milton. [1913 Webster] 117 Moby Thesaurus words for "useful": advantageous, advisable, agential, agentival, agentive, aidful, appropriate, assisting, auspicious, banausic, becoming, befitting, beneficial, benevolent, bon, bonny, brave, braw, bueno, capital, cogent, commendable, commodious, conducive, congruous, constructive, contributory, convenient, decent, desirable, effective, elegant, employable, estimable, excellent, expedient, facilitating, fair, famous, favorable, favoring, feasible, felicitous, fine, fit, fitten, fitting, forwarding, fructuous, fruitful, functional, furthersome, gainful, good, good for, goodly, grand, handy, happy, healthy, helpful, instrumental, intermediary, kind, laudable, likely, mediating, mediatorial, meet, ministerial, ministering, nice, noble, of general utility, of help, of service, of use, opportune, pleasant, politic, positive, practicable, practical, pragmatical, productive, profitable, promoting, proper, propitious, recommendable, regal, remedial, right, royal, salutary, seasonable, seemly, serviceable, skillful, sortable, sound, splendid, subservient, suitable, therapeutic, timely, to be desired, toward, usable, utilitarian, valid, valuable, very good, virtuous, well-timed, wise, worthwhile USEFUL. That which may be put into beneficial practice. 2. The patent act of congress of July 4, 1836, sect. 6, in describing the subjects of patents, mentions "new and useful art," and "new and useful improvement." To entitle the inventor to a patent, his invention must, to a certain extent, be beneficial to the community, and not be for an unlawful object, or frivolous, or insignificant. 1 Mason, 182; 1 Pet. C. C. R. 322; 1 Bald. 303; 14 Pick. 217; Paine, 203.
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