美联社新闻一分钟 AP 2016-5-05

（单词翻译）

This is AP news minute. 

1. Republicans and democrats¹ are going to the polls as Indiana holds its presidential primary on Tuesday. The vote is seen as one of republican Ted² Cruz's last chances to try to slow down GOP front-runner Donald Trump³. 

2. Syrian military has extended its unilateral ceasefire around Damascus for two more days. The U.S and Russia are leading a diplomatic push to restore a partial truce⁴ to the entire country. 

3. The pentagon showed off the world's largest unmanned surface vessel⁵. The 132-foot ship can travel up-to 10,000 nautical⁶ miles on its own. 

4. And the solar-powered plane has completed the first leg of its journey across the U.S. It touched down near Phoenix⁷, Arizona late Monday. 

Sandy Kozel, the associated press, with AP news minute.