WashU has hosted a number of nationally televised debates, including the last one you saw in 2016.

华大主持了一系列的（总统选举）全国电视辩论，包括你在2016年看到的最后一场辩论。

It did not exceed 30,000 fighting men, while the English host numbered altogether more than 100,000.

他的军队能打仗的不超过三万人，而英军的人数却超过了十万。

Street trees matter too, especially in a city like Singapore that hosts the greatest number of endangered bird and plant species.

街边的数木也很重要，特别是在新加坡市这样一个拥有世界上最多种类濒危鸟类和植物物种的城市。

The forest canopy, the highest reaches of leafy branches, hosts an incredible number of mammals, plants and insects, some of which never even touch the ground.

森林树冠是枝繁叶茂的最高处，栖息着数量惊人的哺乳动物、植物和昆虫， 其中一些甚至从未接触过地面。

The World Bank is planning to offer extra help to Syria's neighbouring countries, who are hosting huge numbers of refugees from the civil war. Our economics correspondent, Andrew Walker, reports.

由于叙利亚内战战火，周边国家大量接收难民，世界银行计划对这些国家提供额外帮助。请听本台经济学记者安德鲁·沃克的报道。