perennial

/pərˈɛniəl/

lasting three seasons or more

中文释义：多年生的；长期的

Perennial plants like lavender can survive for many years without replanting.

像薰衣草这样的多年生植物可以存活多年而无需重新种植。

The issue of climate change is a perennial challenge for global policymakers.

气候变化问题是全球政策制定者面临的长期挑战。