Words and Expressions 29.quantitative a.定量的,(数)量的 30.polish v.磨[抛]光,研磨 31.nonatomic a.单原子的,单质的 32.diatomic a.双原子的,二元的Made up of two atoms) 33.mutually adv..相互,交互 29.quantitative a.定量的 , (数)量的 30.polish v. 磨[抛]光, 研磨 31.monatomic a. 单原子的, 单质的 32.diatomic a. 双原子的, 二元的(Made up of two atoms) 33.mutually adv. 相互, 交互 Words and Expressions