enter

main subject; main topic

to go in; to come in / 要る: to be necessary, to be required

to enter, go into, get into a place or a thing / to join a group or organization / to be contained (in), to be included (in) / to be a member of a group, set, category

expenses

sneak into, slip into

to obtain, to come into possession, to become available

to be proficient, skilled, experienced

ashamed and unable to show one's face

(transitive, idiomatic) to develop a crack, to break / (intransitive, idiomatic) to get cracked