例句與造句

1. Research background bum , acute trauma and chronic ulcer may lead to full - thickness defect of skin
   背景資料皮膚的燒傷，創(chuàng)傷和慢性潰瘍等皮膚病變常常導致局部或大面積的皮膚全層缺損。
2. It's difficult to find defect of skin in a sentence. 用defect of skin造句挺難的