最新研究警告：中国近半数城市地面正在下陷

Nearly half of China's major cities are suffering "moderate to severe" levels of subsidence, putting millions of people at risk of flooding, according to a study published by Science.

45% of China's urban land was sinking faster than 3 millimeters per year, driven not only by declining water tables but also the sheer weight of the built environment. The northern city of Tianjin was identified as one of the worst-hit.

▍语言点

1. suffer /ˈsʌfə/ v. 遭受（某种痛苦或灾难 ）
2. moderate /ˈmɑːdərət/ adj. 中度的，适度的
3. severe /səˈvɪr/ adj. 严重的
4. subsidence /ˈsʌbsɪdəns/ n. （地面或建筑物的土地）下沉，下陷
5. put someone at risk of something 把某人置于某种风险之中
6. sink /sɪŋk/ v. 下沉
7. driven by something 由某事导致
8. decline /dɪˈklaɪn/ v. 下降，减少
9. sheer /ʃɪr/ adj. (本文) 巨大的，十足的 (强调事物的大小、程度或数量)
10. be identified as 被认为是
· identify v. 识别，辨认