深入

shēn rù to penetrate deeply; thorough

探究

tàn jiū to investigate; to delve; to probe; to enquire into; to look into

交友

jiāo yǒu to make friends

app 专用

zhuān yòng special; dedicated

企业

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

签

qiān inscribed bamboo stick (used in divination, gambling, drawing lots etc); small wood sliver; label; tag

qiān Japanese variant of 籤|签[qian1]

qiān to sign one's name; visa; variant of 籤|签[qian1]

Telegram:@sign2botdrk