单词 | u |
释义 | u1 of 5noun ˈyü plural u's or us ˈyüz often capitalized, often attributive 1 a : the 21st letter of the English alphabet b : a graphic representation of this letter c : a speech counterpart of orthographic u 2 : a graphic device for reproducing the letter u 3 : one designated u especially as the 21st in order or class 4 [abbreviation for unsatisfactory] a : a grade rating a student's work as unsatisfactory b : one graded or rated with a U 5 : something shaped like the letter U u 2 of 5abbreviation (1)1 unit 2 unsymmetrical 3 physics up (see up entry 4 sense 5) 4 upper U 3 of 5adjective ˈyü : characteristic of the upper classes U 4 of 5abbreviation (2)1 unsatisfactory 2 uracil U 5 of 5symbol uranium |
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