I have a dream中有一句that will give us upon demand the riches of freedom中upon demand是什么意思

I have a dream...a good dream I have a dream作文 I have a dream 原文 那首歌叫什么,歌词中有一句I have a dream I have a dream对a dream 提问 i have a dream 英汉互译急 i have a dream英语作文 i have a dream怎么读? 求,I have a dream 中文翻译, i have a dream的演讲稿 westlife i have a dream中文歌词 i have a dream 的原文 I have a dream that one day. i never have a dream come ture 奥巴马 I have a dream 歌曲 i have a dream中英文歌词 i have a dream歌词中英文对照, i hope have a dream home 英文翻译