511, prolong vt.延长,拉长,拖延

　　Two countries prolonged signing an agreement until details could be agreed on.

　　两国推迟签约直到就细节达成协议。

　　512, promising a.有希望的;有前途的

　　We have found a promising iron deposit.

　　我们已经发现了一个有开采价值的铁矿床。

　　513, prone a. 俯伏的,易于...的

　　俯卧的

　　The police found him in a prone position with a knife in his back. 警方发现他俯卧着, 背上有一把刀。

　　514, propaganda n.宣传;宣传机构

　　The government produced much political propaganda.

　　政府进行了大量的政治宣传。

　　515, propagate vt.繁殖;传播,普及

　　Most plants propagate by seeds.

　　大多数植物都是通过种子繁殖的。

　　vt. 传播; 宣传, 普及

　　The political party started the newspaper to propagate its ideas. 那个政党创办一份报纸来宣传该党的观点。

　　516, propel vt.推进,推动

　　A volcano erupted and propelled rocks high into the sky.

　　火山爆发, 把无数的石块抛向天空。

　　517, prophet n.预言家,先知

　　Daniel was one of the great prophets in the Bible.

　　丹尼尔是《圣经》中一位伟大的先知。

　　518, proposition n.命题,主题;提议

　　n. 论点; 主张

　　The young man gave a clear proposition at the meeting.

　　会上, 那位年轻人提出了一个明确的主张。

　　建议; 提案

　　The business proposition was rejected as impractical.

　　这个生意上的提议因不适用而未被采纳。

　　命题

　　The two teams prepared to debate the given proposition.

　　两个队准备就所给定的命题展开辩论。

　　519, prose n.散文

　　This is a page of well-written prose.

　　这是一篇很好的散文。

　　520, prospective a. 有希望的,预期的,将来的

　　Is she a prospective buyer? 她可能成为我们的顾客吗?

　　511, prolong vt.延长,拉长,拖延

　　Two countries prolonged signing an agreement until details could be agreed on.

　　两国推迟签约直到就细节达成协议。

　　512, promising a.有希望的;有前途的

　　We have found a promising iron deposit.

　　我们已经发现了一个有开采价值的铁矿床。

　　513, prone a. 俯伏的,易于...的

　　俯卧的

　　The police found him in a prone position with a knife in his back. 警方发现他俯卧着, 背上有一把刀。

　　514, propaganda n.宣传;宣传机构

　　The government produced much political propaganda.

　　政府进行了大量的政治宣传。

　　515, propagate vt.繁殖;传播,普及

　　Most plants propagate by seeds.

　　大多数植物都是通过种子繁殖的。

　　vt. 传播; 宣传, 普及

　　The political party started the newspaper to propagate its ideas. 那个政党创办一份报纸来宣传该党的观点。

　　516, propel vt.推进,推动

　　A volcano erupted and propelled rocks high into the sky.

　　火山爆发, 把无数的石块抛向天空。

　　517, prophet n.预言家,先知

　　Daniel was one of the great prophets in the Bible.

　　丹尼尔是《圣经》中一位伟大的先知。

　　518, proposition n.命题,主题;提议

　　n. 论点; 主张

　　The young man gave a clear proposition at the meeting.

　　会上, 那位年轻人提出了一个明确的主张。

　　建议; 提案

　　The business proposition was rejected as impractical.

　　这个生意上的提议因不适用而未被采纳。

　　命题

　　The two teams prepared to debate the given proposition.

　　两个队准备就所给定的命题展开辩论。

　　519, prose n.散文

　　This is a page of well-written prose.

　　这是一篇很好的散文。

　　520, prospective a. 有希望的,预期的,将来的

　　Is she a prospective buyer? 她可能成为我们的顾客吗?