收入;岁入 n. r_______________
revenue
暂无解析
Einstein’snewtheoryonopticschanged__________scientificideaaboutlight.
它很便宜，但在另一方面，质量很差。(ontheotherhand)
必要的;基本的adj.要素，要点n.e_______________
Imadeupmymindthatundernocircumstances__________tosuchprinciple.
Thatkindofshoesare__________expensiveforme.