prefix

/ˈpriːfɪks/ 114
A prefix is a letter or group of letters, for example, "un-" or "multi-," that is added to the beginning of a word in order to form a different word. 前缀

noun [具体名词]前缀;前置代号(置于前面的单词或字母、数字); <旧>(人名前的)称谓

To telephone from the U.S. use the prefix 011 33 before the numbers given here.
从美国拨出电话,请在所给号码前加拨前置代码011 33。

verb [vt. 及物动词]在…前面加(字母或数字);加…作为前言(开场白)

Car insurance policies have the prefix MC (for motor car).
汽车保险单标有MC代号(表示汽车)。

pre- 表示“….前的,预先”prefix 前缀(pre+fix 固定→固定在前面→前缀)
prefix 出现在下面的课文中
Lesson 83 After the elections prefix 形容词: 前..⋯
单词造句: