hair graft

例句：

1. 1.The surgeon performed a hair graft on the patient's scalp to improve his appearance.
   外科医生在患者的头皮上进行了一次头发移植手术，以改善他的外观。
2. 2.After the surgery, the patient was advised to avoid hair grafts for at least six weeks to prevent infection.
   手术后，患者被建议至少避免进行六周的头发移植，以防止感染。
3. 3. Hair grafts are often used in hair restoration treatments to replace lost hair with natural-looking synthetic fibers.
   头发移植通常用于头发再生治疗中，用自然外观的合成纤维替换丢失的头发。