비로소
at last / for the first time (after waiting or effort)
아물다
to heal / to close up (a wound)
전공하다
to major in / to specialize in
작정하다
to plan firmly / to make up one’s mind
가량
about / approximately
슬슬
slowly / gently; also “starting to” (informal nuance)
진급
promotion / advancement in rank or grade
숙지하다
to be familiar with / to know thoroughly
가연성
flammability / combustibility
점화하다
to ignite / to set on fire
불씨
spark / ember
측면
side / aspect or perspective