搜索

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

留

liú to leave (a message etc); to retain; to stay; to remain; to keep; to preserve

liú old variant of 留[liu2]

liú old variant of 留[liu2]

痕

hén scar; traces

推广

tuī guǎng to extend; to spread; to popularize; generalization; promotion (of a product etc)

软件

ruǎn jiàn (computer) software

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