單詞是Knowledge，意思是知識，例如：
1、Knowledge cannot replace friendship， I'd rather be an idiot than lose you.知識不能替代友誼，比起失去你，我寧願做個白癡。
2、Knowledge is a treasure， but practice is the key to it.知識是一寶庫，而實踐就是開啓寶庫大門的鑰匙。
3、Knowledge is a city to the building of which every human being brought a stone.
