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词汇	covalent bond
释义	covalent bondn.（名词）covalent bondIn a water molecule, each hydrogen atom (H) shares an electron (yellow) with the oxygen atom (O). A chemical bond formed by the sharing of one or more electrons, especially pairs of electrons, between atoms.共价键：原子间共用一个或多个电子，尤指成对电子而形成的化学键
随便看	ables able seaman able seaman ablest able–bodied able–bodied seaman abling abloom abluted ablution ablution ablutions ABM ABMs abn Abnaki Abnaki Abnakis abnegate abnegate abnegated abnegates abnegating abnegation abnegations

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