...double,four double等这样的讲法,有的话又是什么意思呢答:double 是双倍的意思。没有 two double,three double,four double 只有:Single (1) (also: singleton, sole, only, etc.) 单 Double (2) (also: pair, twice) 双 Triple (3) (also: triplet, treble, thrice, threesome, troika, trio) 三重 Quadruple (4) 四路 Quintuple or Pentuple ...