一頭栽進

to plunge into / to run headlong into

one / single / a (article) / as soon as / entire; whole; all; throughout / "one" radical in Chinese characters (Kangxi radical 1) / also pr. [yao1] for greater clarity when spelling out numbers digit by digit

one head / a head full of sth / one end (of a stick) / one side / headlong / directly / rapidly / simultaneously

head / hair style / the top / end / beginning or end / a stub / remnant / chief / boss / side / aspect / first / leading / classifier for pigs or livestock / CL:個|个[ge4]

suffix for nouns

to grow / to plant / to insert / to force on sb / to fall head first

to plant; to grow / to insert; to erect (e.g. a bus stop sign) / to impose sth on sb / to stumble; to fall down

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