The box is made out of China fir wood.这盒子是用杉木做成的.Bolman has studied regional variation in Douglas fir seed yields.鲍尔曼曾研究过道格拉斯冷杉种子产量地区间的差异.The growth of spruce and fir needles is determinate.云杉和冷杉的针叶生长是有限的....
...a bowl of fir cones.一碗冷杉树球果The rotten degree of fir trees is an important sign of quality of Abies forest.冷杉林木腐朽程度是冷杉林分质量变化的重要标志.Conifer tree style such as pine, fir, spruce, redwood, juniper, etc.针叶类树包括松树 、 杉树 、 云杉 、...