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全球范围内正在进行□苗研发工作□各国科研机构和制□公司加紧合作,□取早日研发出有效的□苗。□□研发取□阶段性进展,给人们带来了一线希望,但也□要经过严格的□床试验,□保疫苗□安全性和□效□。□/p> <□>当夜幕降临,我们不得不□别。我□着她远去□背影,□底涌□一丝不舍和留恋。这次的相逢让□感受□□一种□所未有的亲□和□暖。□然□知□何□再次相见,但我相信我们之间的那种特殊的联系会一直存在,直到下一□□相遇。□/p>
But □is□i□g is not □□st□a romantic ge□ture—it also h□s scienti□ic ben□fit□. When we kiss, our br□ins □elease□□ cocktail of □hemic□ls□li□e oxyt□cin, dopam□ne, and serotonin,□known as □he "lo□□ horm□□es.□ These chem□cals□can reduc□ str□ss, boo□t mood, and creat□ fee□ings of attachmen□ and□bonding. Kiss□ng □□□o strengthens ou□□□mmune□syste□ by □xpo□ing□us to □ var□ety of bacteria t□at can hel□□build i□munity□