我不确定答案，需要查阅一下参考书。
I'm not sure about the answer, so I need to refer to the reference book.
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refer英 /rɪˈfɜː/|美 /rɪˈfər/
解释
refer 是动词，意思是"查阅、参考"，指通过查看资料来获取信息。refer to 这个短语表示"参考某物"或"查阅某资料"。
I'm not sure about the answer, so I need to refer to the reference book.
refer 是动词，意思是"查阅、参考"，指通过查看资料来获取信息。refer to 这个短语表示"参考某物"或"查阅某资料"。