exist

• He is not fatuously content with existing conditions .
  他不会愚昧地满于现状的。
• No single ultimate test exists .
  还没有最高权威的试验法。
• A great deal of uncertainty exists as the best method .
  很难说什么是最好的方法。
• The vice president supported the existing consensus .
  副总统支持现存的一致意见。
• We pointed out that four antileptons also existed .
  我们指出了还存在四种反粒子。
• A hive can not exist without a queen .
  蜂房不可无蜂王。
• They existed on vegetable food .
  它们靠植物性食物生存。
• Outside of these they did not exist for one another .
  此外，彼此之间便各不相干了。
• Again you often doubt if you really exist .
  还有，你时常会怀疑自己是不是真的存在。
• A wealth of literature exists .
  出现了一大批有关文献。