屋顶: roof...
让步: to concede, to give in, to yield, a concession, (linguistics) concessive...
变异: variation...
接通: to connect, to put through...
知识分子: intellectual, intelligentsia, learned person...
纪要: minutes, written summary of a meeting...
低迷: blurred (landscape etc), low (spirits), in a slump (economy)...
