深入

shēn rù to penetrate deeply; thorough

探究

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

h5 永久

yǒng jiǔ everlasting; perpetual; lasting; forever; permanent

免签

miǎn qiān to waive visa requirements; visa exemption; visa-exempt

名

míng name; noun (part of speech); place (e.g. among winners); famous; classifier for people

TG:@wangcaimdmmqg