More N1 vocabulary

• 炭素たんそcarbon (C)
• 善し悪しよしあしgood or bad; merits or demerits; quality; suitability
• 蕾つぼみbud; flower bud
• 円滑えんかつharmony; smoothness
• 発病はつびょうattack (disease)
• 執着しゅうじゃくattachment; adhesion; tenacity