孩子们的声音是纯洁的。他们的心纯净。他们中的一些人已经发现了生活的艰难。其他人尚未这样做，并且可能没有完全理解世界可能是什么。
(The voices of the children were pure; their hearts were pure. Some of them had already discovered how hard life could be; others had yet to do so and probably did not fully understand what the world could be.)