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单词 u
释义

u1

/juː /
abbreviation Physics
Denoting quantum states or wave functions which change sign on inversion through the origin. The opposite of g.
From German ungerade 'odd'
symbol [in combination]
(In units of measurement) micro- (10−6): direct read-out of concentration in ug or mg/l
Substituted for mu

U2

/juː /
(also u)
noun (plural Us or U's)
1The twenty-first letter of the alphabet.
1.1Denoting the next after T in a set of items, categories, etc.
2 (U) A shape like that of a capital U, especially a cross section: [in combination]: U-shaped glaciated valleys

U3

/juː /
abbreviation
1(In names of sports clubs) United: Oxford U
2British Universal (denoting films classified as suitable without restriction).
3Uruguay (international vehicle registration).
4 (also u) informal You: what will u do next?
symbol
The chemical element uranium.

U4

/juː /
adjective British informal
(Of language or social behaviour) characteristic of or appropriate to the upper social classes: U manners

Origin

1950s: abbreviation of upper class; coined in 1954 by Alan S. C. Ross, professor of linguistics, the term was popularized by its use in Nancy Mitford's Noblesse Oblige (1956).

U5

/uː /
noun
A Burmese title of respect before a man’s name, equivalent to Mr: U Thien San
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更新时间:2024/11/12 9:27:32