《资治通鉴·宋纪·宋纪十五》
褚澄是褚渊的弟弟。
澄，渊之弟也。
Chu Cheng was Chu Yuan's younger brother.
<s>[INST] 将以下英文转换为文言文: Chu Cheng was Chu Yuan's younger brother. [/INST] 澄，渊之弟也。</s>
将以下英文转换为文言文: Chu Cheng was Chu Yuan's younger brother.
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澄，渊之弟也。
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