long-term
US /ˌlɔŋˈtɜːrm/
UK /ˌlɔŋˈtɜːrm/

1.
长期, 长远的
occurring over or involving a relatively long period of time
:
•
We need a long-term solution to this problem.
我们需要一个长期的解决方案来解决这个问题。
•
She made a long-term investment in the company.
她对公司进行了长期投资。