atom [ˈætəm]以下由轻松背单词网站提供
单词级别第4级基本释义n.原子;微粒,微量英英释义the smallest unit of any chemical element , consisting of a positive nucleus surrounded by negative electrons . Atoms can combine to form a molecule参考例句For many years the atom was believed to be indivisible. 在过去有很多年原子一直被认为是不可分割的。He could not get up an atom of sympathy for her. 他对她激不出一点同情心。 推荐阅读 |