1N-COUNT 前缀 A prefix is a letter or group of letters, for example 'un-' or 'multi-', which is added to the beginning of a word in order to form a different word. For example, the prefix 'un-' is added to 'happy' to form 'unhappy'. 前缀
2N-COUNT 前置代码(置于一组号码前的数字或字母,表示所属区域等) A prefix is one or more numbers or letters added to the beginning of a code number to indicate, for example, what area something belongs to. 前置代码(置于一组号码前的数字或字母,表示所属区域等)
To telephone from the US use the prefix 011 33 before the numbers given here.
如果从美国打电话,就要在所给号码前加拨011 33。
I soon learnt to read the licence plates' prefixes.