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n. 字母U；铀（化学元素）

abbr. 不可数名词 (uncountable noun)

U Thant吴丹;长宇谭

U Turn不准掉头;掉头;不准调头

U FREE裳自在;裳自己

Stanford U斯坦福大学;史丹佛大学

U of阿尔伯塔大学;多大;犹他大学

Lehigh U利哈伊大学;里海大学

ctrl u饱和度;色相饱和度;为字符添加下划线;下划线

U Card联合信用卡;聯合信用卡

U BM超声生物显微镜

The U美国商业太空发射竞争法案;办公室;美国绿色建筑委员会;安全理事会

化学

a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine

同义词：uracil

a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons

同义词：uraniumatomic number 92

the 21st letter of the Roman alphabet

同义词：letter u

adj.

(chiefly British) of or appropriate to the upper classes especially in language use

1.
SYMBOL for（） SYMBOL forunited 联合的; 只用于足球队名中
2.
ABBREVIATION for（） ABBREVIATION foryou 你 [text messaging]
3.
ADJ（形容词） (esp of language habits) characteristic of or appropriate to the upper class (语言习惯)上层阶级的 [英国英语][OLD-FASHIONED, INFORMAL] → compare non-U

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