black tide 黑潮
Ocean pollution (especially used for petroleum spilled from a wrecked ship carrying oil)
When the huge oil tanker hit the reef, the disaster caused a black tide that harmed most of the nearby seacoast and ruined the local fishing industry.
那艘巨型油轮触礁，灾难导致了一场黑潮，给沿海附近地区造成了破坏，毁掉了当地的渔业。