exist/ɪg'zɪst/

v. be real, present or alive

v. [I] 存在：Does life exist on other planets? 其他行星上有生命吗？

◇The custom of arranged marriages still exists in this country. 包办婚姻的风俗在这个国家仍存在。

常犯错误

✗ The problem has been existing for some years.

✓ The problem has existed for some years. 这个问题已经有些年头了。