介词短语
中文翻译：比
同义词：
['less than', 'under例句：1. The book is smaller than the one I bought yesterday.（这本书比我昨天买的那本书小。）']
例句：
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1. The book is smaller than the one I bought yesterday.
这本书比我昨天买的那本书小。
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2.He is smaller than his brother.
他比他的弟弟小。
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3. This movie is smaller than the one we watched last week.
这部电影比上周我们看的那部小。