柯林斯詞典chemical bond 1. N a mutual attraction between two atoms resulting from a redistribution of their outer electrons 化學(xué)鍵→see also covalent bond , electrovalent bond , coordinate bond 返回 chemical bond劍橋詞典an electrical force that holds atoms together to form a molecule (= the smallest unit of a substance ) 化學(xué)鍵 返回 chemical bond