arctic tree line
常见例句
- A treeless area between the icecap and the tree line of Arctic regions, having a permanently frozen subsoil and supporting low-growing vegetation such as lichens, mosses, and stunted shrubs.
苔原北極地區冰蓋和喬本植被線之間的無樹地區，有永凍底土，竝支撐低的植物，如苔蘚、地衣和發育不全的灌木。
http://chazidian.com 返回 arctic tree line