电子原子必将核的电磁力。同样，一组原子可以保持彼此的约束，形成了分子。
The electrons of an atom are bound to the nucleus by the electromagnetic force. Likewise, a group of atoms can remain bound to each other, forming a molecule.
像磁力现象或水分子的状态或细菌菌落如何生长等现象——都是自然现象。
Phenomena like magnetism or the behavior of water molecules or how colonies of bacteria grow - phenomena of nature.
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