Around half of the world's wetlands disappeared in the last century.
在上个世纪，世界上的湿地消失了一半左右。
Wetlands often develop in the meander scars of dried-up oxbow lakes.
U型湖干掉后的曲流痕往往孕育出湿地。
The Salyan Rayon is located near wetlands frequented by migratory birds.
萨利亚内区地处经常出现候鸟的湿地附近。