英语不是最容易学的语言——它的大多数常用动词都是不规则的，而且它的词汇量很大——常用单词至少有20万个。

English is not the easiest language to learn—most of its common verbs are irregular and it has a large vocabulary—at least 200,000 words are in common use.

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对于语言学家来说，动词由不规则向规则过渡正体现了语法的变迁。

Linguists regard transitions from irregular to regular verb forms as key markers of grammatical change.

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语言学习涉及很多不确定性——学习者每天都遇到新的词汇，每条语法规则也都可能包含截然相反的阐释或不规则的动词。

Language learning involves a lot of uncertainty - students will encounter new vocabulary daily, and for each grammar rule there will be a dialectic exception or irregular verb.

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