旅行: to travel, journey, trip...
愈演愈烈: ever more critical, problems get more and more intense...
打捞: to salvage, to dredge, to fish out (person or object from the sea)...
补习: to take extra lessons in a cram school or with a private tutor...
嫂子: (coll.) older brother's wife, sister-in-law...
挑战: to challenge, challenge...
预计: to forecast, to predict, to estimate...
珍视: to place great importance on, to treasure...
顺: to obey, to follow, to arrange, to make reasonable, along, favorable...
徐徐: slowly, gently...