单词 | 即质子 |
例句 | DEFINITIVE EXAMPLES 权威例句〔quark〕Atoms are made up of smaller particles - protons, neutrons and electrons - some of which are made up of even smaller ones, called quarks.原子是由更小的粒子,即质子、中子和电子组成的,其中有些是由更小的叫做夸克的粒子构成的。剑桥高阶 |
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