u是什么意思？

u

例句

• When an atom of U235 is split,several neutrons are set free. 一个铀235原子分裂时,释放出几个中子。
• Congress is the legislative branch of the U.S. government. 国会是美国政府的立法部门。
• Mr. Lorry had been idle a lo and had just poured out his last glassful of wine complete an appearance of satisfaction as is ever to be found in an elderly gentleman of a fresh complexion who has got to the end of a bottle, when a rattling of wheels came u 罗瑞先生已经悠闲了许久，刚带着心满意足的神情斟上最后一杯。这位因喝完了足足一瓶酒而容光焕发的老年绅士露出了完全满足的神态。此时那狭窄的街道上却响起了辚辚的车轮声，然后隆隆的车声便响进了院子。
• Only native-born citizens are eligible for the U.S. Presidency. 只有本国出生的公民才有资格担任美国总统的职务。
• He's a U.S. diplomat assigned to the embassy in London. 他是美国驻伦敦大使馆的一名外交官。
• U.S.business today is challenged by aggressive overseas competitors. 今天的美国商业受到咄咄逼人的外国竞争者的挑战。
• Each of the U.S. states has an autonomous government. 美国的每个州都有一个自治政府。
• This helps to explain the unfortunate experience of a certain agriculturist from the U.S. assigned to duty in another country. 这对解释某位被分配到另一国家去工作的美国农业学家的不幸遭遇是有帮助的。
• The centre of the U.S. economy shifted from the agrarian areas to the industrial centres in the north. 美国的经济重心由农村转到北方的工业中心。
• An uncountable noun is marked [ U ] in this dictionary. 不可数名词在本词典中以 [ U ] 标明.