for historical evolution, see V. Used punningly for you by 1588 ["Love's Labour's Lost," V.i.60], not long after the pronunciation shift that made the vowel a homonym of the pronoun. As a simple shorthand (without intentional word-play), it is recorded from 1862. Common in business abbreviations since 1923 (such as U-Haul, attested from 1951).
双语例句
1. The United States of America is commonly abbreviated to U.S.A..
美利坚合众国常被缩略为U. S. A..
来自《现代英汉综合大词典》
2. Somebody forgot to bring along the U-bolts to clamp the microphones to the pole.
有人忘了带把麦克风固定在支架上的U形螺栓。
来自柯林斯例句
3. And what of the effect on U.S domestic opinion?
对美国国内的舆论有什么影响？
来自柯林斯例句
4. U.S. forces now occupy a part of the country.
美国军队现在占领了该国的一部分。
来自柯林斯例句
5. Hammer's business pedigree almost gua-ranteed him the acquaintance of U.S. presidents.
