匍匐前进

to crawl forward

crawl / lie prostrate

to crawl / to creep

to fall prostrate

front / forward / ahead / first / top (followed by a number) / future / ago / before / BC (e.g. 前293年) / former / formerly

to go forward / to forge ahead / to advance / onward

to go forward / to advance / to go in / to enter / to put in / to submit / to take in / to admit / (math.) base of a number system / classifier for sections in a building or residential compound