필요need; necessity; requirement 필수requirement; must 필수essentials; requirements; necessities; a must 필수적being essential; being required; being indispensable 필수적essential; indispensable; required 필수품essentials; necessities 필요성necessity; need 불필요being unnecessary 생활필수품daily necessities 필독서must-read; required reading

필요need; necessity; requirement 중요importance 필요성necessity; need 강요coercion; pressure 불필요being unnecessary 소요requirement 수요demand 요구request; demand 요소element; component; factor; requisite 요약summary; summing-up

통화량telephone traffic 강수량precipitation 교통량traffic volume; traffic density 대량large amount; large volume 량amount 분량quantity 사용량usage; use; amount of use 수량amount; quantity 식사량portion of food 양quantity; amount