英语 拉丁语 希腊语 one uni mono two du/bi dis/dy/di three tri tri four quadr / quart tetra five quint penta six sex(t) hexa seven sept hept(a) eight octo octo nine nov/non ennea ten dec deca/deka half semi hemi one hundred cent hect(o) one thousand mill kilo ten hundred thousand mega 一到十倍single, double, triple, quadruple, quintuple, sextuple, septupl