[/ˈætəm; ˋætəm/] n 用法: 1 (a) [C] smallest part of an element that can exist chemically 原子: Two atoms of hydrogen combine with one atom of oxygen to form a molecule of water. 两个氢原子和一个氧原子结合而形成一个水分子. (b) [sing] this as a source of energy 原子能: the power of the atom 原子动力 * [attrib 作定语] an atom scientist 原子能专家. 用法: 2 [C] very small quantity or thing 极微小的量或事物: The tower was blown to atoms by the force of the explosion. 爆炸的力量把塔炸得粉碎. * There isn't an atom of truth in the rumour. 谣言中没有丝毫的真实性. |