conifer

Red squirrels cut conifer cones from trees and bury them in plant litter on the forest floor.

红松鼠会将针叶树上的果实割下来，然后埋在森林地面的落叶中。

To get annual temperatures, they measured rings in high-altitude conifer trees, which grow faster in warmer summers and slower in colder years.

为了得出每年的气温值，他们对生长在高海拔地区的针叶树的年轮进行测量，这种树木在炎烈的夏天生长得比较快，而在寒冷的年份就长得比较慢。