英语学习 4 quora：macbook software

1. Open source, powerful, and easy to use fileencryption  [ɛn'krɪpʃən]  加密. 

2.You could put sensitive 敏感的 documents (birthcertificate证书, scan of drivers license, college transcripts 成绩单) in your Dropbox and have them securely available anywhere in the world without having to worry about someone getting physical access to your computer or someonecracking 打开 ；破裂Dropbox and getting access to them.

3. If you want tofilter['fɪltɚ]过滤   your internet content or make it more kid-friendly if theyroutinely[rʊ'tinli]例行公事地，日常的，通常的，经常的use your computer. 

4. Souped up 改装成了PDF reader.

5.The best way I know to update Twitter and Facebook at the same time, but has its share ofannoyances [ə'nɔɪəns]烦恼，烦恼的事情