词缀
前缀quasi- = kind of, resembling, like but not really, as i
前缀actino-,actin- = A ray or beam 光线,束
前缀aceto-,acet- = Acetic acid or the acetyl group
前缀vice-,vis- = in the place of another 代替
前缀kilo-;chili-;milli-;milli- = 千;千分之一
前缀hecto-;centi-=hundred;one-hundredth 百,百分之一
前缀septem-,septim-,sept-,septi-,septa- = seven 七