M&；M

1.[c][u]英语字母表的第 13 个字母the 13th letter of the English alphabet

1.（尤指衣服尺码）中号(especially for sizes of clothes) medium

2.高速公路（英国公路代号，后接数字）(used with a number to show the name of a British motorway )

1.英语字母表第十三字母

2.M 形状的东西;【印】= em

3.M (罗马数字) 1000. MCML = 1950

1.the 13th letter of the English alphabet. M is a consonant.

2.the roman numeral for 1,000

3.motorway: used in the names of large highways in the U.K.