crease sign

• 折痕征[周围型肺癌的征象]

crease sign的用法和样例：

例句

1. She made a crease in the paper and carefully tore it in two.
   她在纸上留下一道折痕，然后小心地把它撕成两半。
2. Crease well, then refold the opposite way and crease again.
   折痕很好地，然后再再折叠相反的方法和折痕。