You are viewing a single comment's thread from:RE: [kr-science] real life science 실생활속 과학이야기part5 공학자의 문제해결방식View the full contextView the direct parentjoonghoonlee (52)in #kr-science • 7 years ago 공감해 주시니 뿌듯합니다 ㅎㅎㅎ