凌空

líng kōng be high up in the sky

签名

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

服务

fú wù to serve; service; CL:項|项[xiang4]

平台

píng tái platform; terrace; flat-roofed building

代理

dài lǐ to act on behalf of sb in a responsible position; to act as an agent or proxy; surrogate

常见

cháng jiàn commonly seen; common; to see sth frequently

稳定性

wěn dìng xìng stability

问题

wèn tí question; problem; issue; topic; CL:個|个[ge4]

电报

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

S6signi 高速

gāo sù high speed

apk 分发

fēn fā to distribute; distribution; to assign (sb) to a job

pxw