explore and expand
Expand territory. The same as "opening up territory".
Idioms and allusions
[source] Chen Zilong's "Jin Lun" in Ming Dynasty: "Emperor Wu's opening up territory is similar to that of Qin and Han Dynasties."
Discrimination of words
To open up a territory; to open up a territory; to open up a territory
explore and expand
cannot bear to part from each other - nán fēn nán shě
stop over wherever there is a house - wàng mén tóu zhǐ