汀线 tīngxiàn beach line Definitions Defs Origin Strokes Stroke Words Sentences Sents 汀线 汀線 tīngxiàn beach line the line or mark formed on a beach by the impact and erosion of waves; used by geologists to track changes in sea level
汀线 汀線 tīngxiàn beach line the line or mark formed on a beach by the impact and erosion of waves; used by geologists to track changes in sea level
