分子 /fēnzǐ/ angolul

molecule [molecules]▼(group of atoms held together by chemical bonds)
noun
[UK: ˈmɒ.lɪ.kjuːl] [US: ˈmɑː.lə.ˌkjuːl]

numerator [numerators]▼(number or expression written above the line in a fraction)
noun
[UK: ˈnjuː.mə.reɪ.tə(r)] [US: ˈnjuː.mə.reɪ.tər]