원자 번호 4번의 가볍고 단단한 회색 금속 원소로, 주로 합금이나 원자력 발전 등에 사용된다.
The chemical element of atomic number 4, a hard, lightweight, gray metal used in alloys and nuclear reactors.
예문:
"Beryllium is an essential component in the mirrors of the James Webb Space Telescope due to its rigidity and thermal stability."
"Alloys containing beryllium are highly valued in the electronics industry for their excellent electrical conductivity."