1、After the accident, her face was severely injured and became completely irrecognizable.
事故后，她的脸部严重受伤，完全不可辨认了。
2、The old photograph had faded over time, making the people in it irrecognizable.
这张旧照片因为时间的流逝而褪色，使得照片中的人们几乎认不出来了。