百度

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

seo 排名

pái míng ranking; ordered list; to rank nth out of 100; to be placed; roll of honor

优化

yōu huà optimization; to optimize; to make superior

软件

ruǎn jiàn (computer) software

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