防止对船上乘客和乘员采取非法行为的措施: measures to prevent unlawful acts against passengers and crews on board ships
大众: the masses; the people; the public; the broad masses of the people◇大众电影 popular film; 大众歌曲 popular songs; 大众科学 popular science; 大众文化 mass culture; 大众文艺 art and literature for the masses; p