旁征博引的英文：
[Literal Meaning]
extensive/seek/broad/quote
to quote copiously from many sources

[解释]
指说话、写文章引用材料作为根据或例证。

[Explanation]
to quote copiously from many sources

[例子]
写文章旁征博引是一个好的方法，但如果过度引用就会掩盖了自己的观点。

[Example]
It is a good idea to quote copiously from many sources when writing articles, but if one overdoes it, one's own opinion will be covered.