exist

1. V-I If something exists, it is present in the world as a real thing. 存在[no cont]

He thought that if he couldn't see something, it didn't exist. 他认为如果他看不见某种东西，它就不存在。

Research opportunities exist in a wide range of areas. 研究机会存在于广泛的领域中。

2. V-I To exist means to live, especially under difficult conditions or with very little food or money. (尤指在困境中) 生存

I was barely existing. 我几乎活不下去了。

Some people exist on melons or coconuts for weeks at a time. 有些人一度数周靠各种瓜与椰子生存。