1·She had makeup caked on her face to hide her acne scars.
她在脸上化上浓妆以遮住粉刺疤痕。
—— 《柯林斯英汉双解大词典》
2·They hope to someday repair scars with the donor's own cells, a slower process but one that will more effectively prevent rejection.
他们希望有一天用捐献者自身的细胞来修复疤痕，这一过程较慢，但是可以更有效的预防排斥反应。
3·When cuts or burns heal, they often leave scars or marks. People who injure themselves usually hide the cuts and marks and sometimes no one else knows.
割伤或烫伤的伤口愈合以后，会留下疤痕或印痕，自伤的人通常掩藏这些伤口，有时不会有他人知道他们自伤。
4·In addition to the high cost of surgical treatment, fear of surgery and concerns about the resulting scars and possible amputations may also prevail.
除外科手术治疗的高费用外，害怕外科手术和担忧由此产生的疤痕及可能截肢也可普遍流行。
5·Half were asked to look at original face shots, while the other half viewed images that had been digitally manipulated to add scars to their cheeks, jawbones or foreheads.
有一半的测试对象被要求看原始脸部照片，而另一半的人则要观看通过数字加工疤痕到照片人物脸颊、下颌或者额头的照片。