or: 或者，否则，常用于否定句中 I don't like apples or bananas. Hurry up or you'll miss the bus. and: 并且，Hurry up and you'll catch the bus.
enhance: 使…看起来更好；提高；美化 cement: （比喻）将…结合在一起；加强；巩固。如cement a friendship表示“加强友谊” strengthen: 使…更强