Fluoniobate
氟铌酸盐
🗣️ 情景例句
Scene: Tom and his wife have invited Carl and David for dinner.
场景：汤姆和他夫人邀请卡尔和大卫吃晚饭。
Govern your thoughts when alone, and your tongue when in company.
一人独处慎于思，与人相处慎于言。
Maybe some folk songs to start with?
先演奏些民歌吗？