Green Wall of China, a massive afforestation program on the eastern margin of the Gobi Desert aimed at stopping the desert's expansion, started in 1978 and planned to be completed by 2050
( 三北防護林 )
EXAMPLE SENTENCES
亲戚们开始给医院、护林站和高速公路巡警打电话。
The relatives began calling hospitals, ranger stations, the highway patrol.