Foury富里fournum.四four-leggedadj.四足的four-vectorn.四元矢量four-footedadj.四足的four thousand(=4000) 四千four-squareadj.方形的; 正方的; 稳固的four-barrel四镜头four respects四个尊重four elements四元素four electron四电子four updating四个提高