VOA慢速英语:FBI: Ransomware Scams on the Rise

短语讲解：

1. More than 60 percent of the cases were in Australia.

more than 不只是; 很; 超过; 在…次以上
例句：True friendship is worth more than money.
真正的友谊比金钱更有价值。

2. Computer users will not be able to open those encrypted files without the decryption key.

be able to 能，会; 能够
例句：You should be able to converse comfortably.
你应该能够舒服地进行谈话。

3. These could be pictures of your child’s first birthday, videos of your honeymoon, financial spreadsheets of your small business; files that you really care about.

care about 关心; 在乎; 担忧; 关怀
例句：A selfish person does not care about other people's problem.
自私的人是不关心别人的困难的。