久青草国产手机视频免费观看_毛片网站是多少_亚洲视频中文_一区二区高清在线

首頁英語詞典subsetsubset英英釋意

subset

英 ['s?bset] 美['s?bs?t]
  • n. [數] 子集；子設備；小團體

英英釋意

1. a set whose members are members of another set; a set contained within another set