百度

Bǎi dù Baidu, Internet portal and search engine, www.baidu.com, listed as BIDU on NASDAQ since 1999

搜索

sōu suǒ to search (a place); to search (a database etc)

留下

liú xià to leave behind; to stay behind; to remain; to keep; not to let (sb) go

痕迹

hén jì vestige; mark; trace

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