1、exist
存在;实际上有
He thought that if he couldn't see something, it didn't exist.
他认为自己看不见的东西就不存在。
Research opportunities exist in a wide range of pure and applied areas of entomology.
纯理论昆虫学和应用昆虫学的众多领域都存在着研究机会。
(尤指在逆境中)生存,生活
I exist from one visit to the next.
我的生活就是一个接一个的访问。
I was barely existing.
我勉强维持生计。
2、accurate
(信息、测量、数据或仪器等)精确的,准确的
Police have stressed that this is the most accurate description of the killer to date.
警方强调这是迄今对凶手最精确的描述。
This may provide a quick and accurate way of monitoring the amount of carbon dioxide in the air.
这也许能提供一个监测空气中二氧化碳含量的既快又准的方法。
(说法、描述)确切的,恰当的
I think it may take sometime before we can have an accurate assessment of the damage.
我认为我们对损失作出准确的估算可能需要一段时间。
They were accurate in their prediction that he would change her life drastically.
他们预测得没错,他使她的生活发生了翻天覆地的变化。