필요必要 need; necessity; requirement 필수必修 requirement; must 필수必須 essentials; requirements; necessities; a must 필수적必須的 being essential; being required; being indispensable 필수적必須的 essential; indispensable; required 필수품必需品 essentials; necessities 필요량必要量 requirement; amount needed 필요성必要性 necessity; need 불필요不必要 being unnecessary 생활필수품生活必需品 daily necessities 필독서必讀書 must-read; required reading 필사必死 desperation; franticness 필사적必死的 being desperate; being frantic 필사적必死的 desperate; frantic 필수必需 being essential; being indispensable; being required 필승必勝 determination to win; certainty of victory 필시必是 certainly; surely 필연必然 inevitability; unavoidability 필연必然 certainly; surely; without fail 필연성必然性 inevitability; unavoidability 필연적必然的 being inevitable; being unavoidable 필연적必然的 inevitable; unavoidable 필요시必要時 time of need; being when necessary; being in case of necessity 필요악必要惡 necessary evil 필요조건必要條件 necessary condition 필요충분조건必要充分條件 necessary and sufficient condition 하필何必 of all things 사필귀정事必歸正 corollary; natural consequence 생필품生必品 daily necessity