柯林斯詞典atom /??t?m/ (atoms) 1. N-COUNT An atom is the smallest amount of a substance that can take part in a chemical reaction. 原子 ...the news that Einstein's former colleagues Otto Hahn and Fritz Strassmann had split the atom. …愛因斯坦的前同事奧托·哈恩和弗里茨·斯特拉斯曼曾分裂了原子的消息。 返回 atom劍橋詞典the smallest unit of any chemical element , consisting of a positive nucleus surrounded by negative electrons . Atoms can combine to form a molecule 原子 A molecule of carbon dioxide (CO2) has one carbon atom and two oxygen atoms. 二氧化碳（CO2）分子是由一個碳原子和兩個氧原子構(gòu)成的。 figurative He hasn't an atom of sense (= he has no sense ), that boy . 那個孩子啊，一點頭腦也沒有。 例句 The nucleus of a deuterium atom contains a proton and a neutron .Scientists are working to harness the power of the atom. 返回 atom