But we can work hard today. We can don”t work hard today, But if that,we will work more hard tomorrow. So we work hard today is more comfortable than work more hard tomorrow. Let”s work hark now！昨天與今天與明天的概念 標籤：昨天與今天作文 今天與明天作文 昨天今天明天作文 昨天，今天作文