Unverified50% confidenceFactExact time
Perplexity支持Google风格的搜索运算符，如`site:reddit.com`来将结果限定在特定来源
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026
Sources
10款AI工具怎么选？按场景分工的实用指南
bilibili中山龙阿介6/21/2026
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