幾何拓撲 jǐ hé tuò pū

DEFINITIONS

  1. (math.) geometric topology

CHARACTERS

幾 jǐ how many? how much?; a few, some
何 hé
HSK 4
what, why, where, which, how
拓 tuò
HSK 6
expand; open up; support or push
撲 pū pound, beat, strike; attack