古代 뜻
- 參加: participation
- 原子炉: nuclear reactor; atomic pile
- 各色every kind and description: 가지각색
- 原價: cost price
- 同意: agree
- 南: south
- 名詞: substantive; noun; place; name
- 午後: afternoon; afternoons; arvy; daytime; even; arvo; night; evening; midafternoon; p.m.; noon
- 周期律表: periodic table