perennial
Definition
Lasting for a very long time; enduring or recurring regularly.
日本語 長い間続く、定期的に繰り返される
Example
"The conflict has been a perennial issue in the region."
Lasting for a very long time; enduring or recurring regularly.
日本語 長い間続く、定期的に繰り返される
"The conflict has been a perennial issue in the region."