济南李大妈
A group of four词典释义quaternionn.四个一组，四人一组，四元数quaternityn.四个一组，四人一组，四位一体例句以下例句来源于网络，仅供参考1.或者他们应该被分成两个四人一组和一个三人一组吗？Or should they be separated into two groups of four and one group of three.2.十八岁以上的人可以自行组成一队，四人一组，参加这个慈善步行活动。People over eighteen can group themselves into a team of four and join this charity walk.
