源头

yuán tóu source; fountainhead

企业

qǐ yè company; firm; enterprise; corporation; CL:家[jia1]

签名

qiān míng to sign (one's name with a pen etc); to autograph; signature

常见

cháng jiàn commonly seen; common; to see sth frequently

安全问题

ān quán wèn tí safety issue; security issue

电报

diàn bào telegram; cable; telegraph; CL:封[feng1],份[fen4]

搜

sōu to search

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