색, 맛, 냄새가 없는 기체 상태의 화학 원소로, 지구 대기의 약 78%를 차지하며 생명체의 단백질 구성 등에 필수적인 요소.
A chemical element that is a colorless, odorless, and tasteless gas, making up the largest portion of the Earth's atmosphere and being vital for all life forms.
예문:
"The air we breathe is mostly composed of nitrogen rather than oxygen."
"Liquid nitrogen is often used in laboratories to freeze samples quickly."
"Plants need nitrogen in the soil to grow strong and healthy."