大家都搜：
据信存在
1、believed───赞成；有信心；的存在；认为；相信
2、believed to───相信是的
3、exist in───vt.存在于；存在于…中
4、seizes to exist───攫取生存
5、exist───vi.存在；生存；生活；继续存在
6、exist game───存在游戏
7、there exist───存在着……
8、cease to exist───不复存在
9、exist define───存在定义
1、The necessary conditions are believed to exist in the centers of some (if not most) galaxies, including our own Milky Way .───认为必需的条件存在于某些（如果不是大部分）星系中心，包括我们自己的银河。
2、are extremely dense masses believed to exist at the center of most galaxies. Their gravitational pull is so strong, they absorb light.───是被认为存在于大多数星系中心的密度极大的物质，它具有非常强的引力，可以吸收光线。
3、mastiff may not only be the most expensive dog in the world, it is also among the rarest, with just 100 pure-bred animals believed to exist.───藏獒不仅是世间最昂贵的狗，而且是世间最珍贵的狗。据信，仅仅只存在100条纯种藏獒。
4、These are extremely dense masses believed to exist at the center of most galaxies. Their gravitational pull is so strong, they absorb light.───黑洞是被认为存在于大多数星系中心的密度极大的物质，它具有非常强的引力，可以吸收光线。
5、About a hundred of the mutant cats, which are not albinos , are believed to exist.───有大约一百只变种猫科动物并不认为是变种，而相信是真正存在的。
6、The primary mission of the Phoenix is to dig into an ice layer believed to exist a few inches below the surface.───“凤凰”号的首要任务是挖掘火星地表下数英寸极可能存在的冰层。
7、Sumatran tigers are endangered; fewer than 500 are believed to exist in the wild and 210 animals live in zoos around the world.───苏门答腊虎濒临灭绝，大概有不到500只在野外生存，还有210只在世界各地的动物园。
1、Only about 50 Florida panthers are believed to exist.
2、A training image is the numerical representation of a prior geological model that contains the patterns believed to exist in realistic reservoirs under study.
3、147Although black bears are common in the eastern Canadian province of Labrador, grizzly bears —often similar in color, but much larger —were believed to exist only in the western provinces.