祖先: ancestor, forebears...
前赴后继: to advance dauntlessly in wave upon wave (idiom)...
四合院: courtyard house with a fully enclosed courtyard (type of Chinese residence)...
喂: to feed...
无可厚非: Can't blame too much, It means that although there are shortcomings in speaking and doing things, there are still merits and should be understood...
烟花: fireworks, prostitute (esp. in Yuan theater)...