常见例句noun(LETTER)(MUSIC)The piece is in (the key of) E. 这支曲子是 E 调的。The bottom string on a guitar is an E. 吉他的低音弦是发E音的。(MARK)You might have to take the course again if you get many more Es. 如果你这门课的成绩再继续是E级，就有可能必须重修。(EAST)(DRUG)adjective(EAST) 返回 E, e