前缀，即在词根（如：union联合）前加上特有的一个缀文（如：re-）使之成为另一个新的词汇并具有新的含义（如：reunion团圆，重聚）。
这一服务可以返回以某前缀开始的英语单词列表，如果您想帮助用户正确输入英文单词，这一功能将非常适合于预输入功能。
This service can return a list of English words that start with a certain prefix, which makes it perfect for type-ahead functionality if you want to help users enter English words correctly.
以后的英语名称中就形成了唱以前缀表示来源，加后缀“-ose”表示碳水化合物的俗名。
Trivial names were then formed, in English terminology, often from a prefix related to the source followed by the suffix “-ose” to denote carbohydrate.
许多新词都是由已经在英语中存在了几个世纪的词根、前缀和后缀组合而成的。
Many of these new words are combinations of root words and prefixes and suffixes which have already existed in English for centuries.
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