We often hear media reports that an unauthorized hacker has been able to access a computer database and to alter information 15 there.
我们经常听到媒体报道未经授权的黑客能够访问计算机数据库并修改那里的信息15。
make unauthorized use of online images
未经授权使用在线图片
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。