☆ ADVANCED LEVEL : 0 ☆☆ INTERMEDIATE LEVEL : 0 ☆☆☆ ELEMENTARY LEVEL : 0 NONE : 2 ALL : 2

• 뺄셈 : 수나 식 등을 빼서 계산함. 또는 그런 셈. Noun
🌏 SUBTRACTION: An arithmetic operation of withdrawing one number or formula from another; or such an operation.

• 뼛속 : 뼈의 중심부에 가득 차 있는 연한 물질. Noun
🌏 MARROW: Soft substance filling the center of a bone.

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