_______________________The UN humanitarian coordinator for Yemen said the airport was a vital lifeline for delivering aid and evacuating the wounded. He said the runways were so badly damaged that no flights were possible until they were repaired. Senegal says it's sending more than 2,000 troops to support the coalition fighting the Houthis following a request from Saudi Arabia last month. The west African country is the first Sub-saharan and none-Arab nation to contribute troops directly to the conflict. ______________________联合国也门人道主义协调员称机场对于输送救援和撤离伤患人员非常重要.他还表示机场跑道损坏严重,导致在修复完成前机场无法运转. 应上月沙特阿拉伯提出的要求,塞内加尔表示将派出2000名士兵支持联合军对胡塞反动武装的打击.在撒哈拉以南地区非阿拉伯国家中,这个西非国家是第一个直接向冲突地区派兵的国家.