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```□tml But kissing is n□□□□□s□ a romantic □esture—it also ha□ scie□tific benef□ts.□When □□ kiss, □ur brains rel□□□e □ c□□k□a□l of ch□m□ca□s like□□x□tocin, d□□amine, and serot□nin□ known□as□the □lo□e h□rmone□." These chemi□als c□□ r□du□e st□ess, □oos□ mood, and c□eate □eelings o□ a□tac□ment and bonding. Kiss□□g also st□engthens our immu□e system by e□pos□ng us t□ a variety of bacte□ia th□t □an □elp □□il□ imm□nity□温馨的故事情节
<□2>□情梗概
环月漫□<□h2>