vallate

例句：

1. 1.The wound has begun to vallate.
   伤口开始结痂了。
2. 2. The scar on his face is still visible.
   他脸上的疤痕仍然可见。
3. 3.The crust of the wound will fall off in a few days.
   伤口的痂皮几天后就会脱落。