介词作为英语中最为活跃的词汇之一，一直是传统教学的难点。
Preposition is one of the most active parts of speech in English.
在英语词汇当中，虽然介词所占的分量不大，但是对英语学习者来说却是很大的困难。
Prepositions make up a small part of English vocabulary but are one of the most difficult problems for English learners.
本文通过对英语生物医学名词、动词、形容词、副词和介词等难点词语的译析，为英语生物医学文献中难点词汇的翻译提供一些参考。
In this article, we discuss the translating of several types of words, e. g. nouns, verbs, adjectives, adverbs and prepositions in English biomedical treatises, and hopefully, some of the...
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