深入

shēn rù to penetrate deeply; thorough

探究

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

iOSTF 签名

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

电报

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

K9ios 好用

hǎo yòng useful; serviceable; effective; handy; easy to use

tf 签名

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

kqx