1·Long ago, people believed that witches gathered together and ghosts roamed the world on Halloween.
很久以前，人们相信女巫聚集在一起，鬼魂在万圣节前漫游世界。
2·They roamed over the hills.
他们在山里漫游。
3·Humankind's oldest known ancestor probably lived in fear of several large sabretooth cats that roamed the same ancient lakeside habitat in Africa.
有史以来最古老的人类祖先很可能生活在由几种猫科动物带来的恐惧中，因为这些动物曾在人类生活的古非洲湖畔栖息地漫游。
4·You, too, had roamed that skeleton of house.
在那所房子的残骸中漫游过。
5·Although it was designed to roam the planet for a few days and transmitinformation for only three months, the Pathfinder roamed for a month andcontinued to send information for a year.
该飞行器虽然计划在火星上漫游数日，并仅进行3个月的信息传送，但是实际上探路者漫游了一个月，信息传送工作也进行了1年。
1·He roamed the countryside and listened to the music heard in small towns and in all sorts of celebrations.
他在乡间漫步，并且倾听小城镇和各种庆典活动上的音乐。
2·The discoveries offer the newest insights into the lives of the giant crocs, which roamed much of what is now the United States and northern Mexico.
这些发现让我们对这种巨型鳄鱼的生活史有了全新的了解，几千万年前它们曾经漫步在现在美国和墨西哥北部。
3·Commanders wearing face masks roamed the streets, issuing orders through walkie-talkies.
指挥官们带着面具漫步街头，通过对讲机发出命令。
4·In the Canadian Yukon, scientists are using genetic techniques to identify caribou and to study ancient caribou that roamed the same ice patches 6,000 years ago.
在加拿大的育空地区，科学家们正在利用基因技术来鉴别北美驯鹿，并探究古时驯鹿的相关信息，6000年前它们曾在这块流冰区漫步。
5·Plato: Do you remember when our ancestors roamed together in Central Asia?
柏拉图：你还记得我们的祖先在中亚一起漫步么？