VOA慢速英语:Worst Case Possible Comes True: Louisiana Sinking Fast

subsidence – n. the sinking or lowering of an area of land.

worst case scenario – phrase. the most serious or damaging thing that could happen in a situation

pessimistic – adj. having or showing a lack of hope for the future : expecting bad things to happen

staggering – adj. very large, shocking, or surprising

marshland – n. an area of soft and wet land

rod – n. a straight, thin stick or bar

sediment – n. material that sinks to the bottom of a liquid

bedrock – n. the solid rock that lies under the surface of the ground

levee – n. a long wall of soil built along a river to prevent flooding

extract – v. to remove (something) by pulling it out or cutting it out

replenish – v. to fill or build up (something) again