translation.en: But before Tahrir was a global symbol of liberation, there were representative surveys already giving people a voice in quieter but still powerful ways.
translation.zh: 但是在Tahrir广场成为解放的符号之前， 已经有有代表性的调查 给了人们一个表达自己的话语的机会 用一种无声的，但是有力的方法。