The architect must be a philosopher.
I'm not perfect - and I don't pretend to be.
规模和价值效应在不同市场和时间段普遍存在,但其幅度可能有显著差异。
The world is full of obvious things which nobody by any chance ever observes.
儿童对活动的需要几乎比食物的需要更为强烈。