欣慰: to be gratified...
自在: free, unrestrained, comfortable, at ease...
栋: classifier for houses or buildings, ridgepole (old)...
光缆: optical cable...
畅谈: to talk freely, to discuss without inhibition...
权: authority, power, right, (literary) to weigh, expedient, temporary...
营业: to do business, to trade...
影片: film, movie...
掉头: to turn one's head, to turn round, to turn about...
刮风: to be windy...
