潮流: tide, current, trend...
地道: authentic, genuine, proper...
港口: port, harbor...
警察: police, police officer...
谜团: riddle, enigma, unpredictable situation, elusive matters...
面条: noodles...
次要: secondary...
因: cause, reason, because...
劝说: to persuade, persuasion, to advise...
等: etc.; and so on, wait...