冷杉 、 云杉和松树都是针叶树.Firs, spruces and pines are conifers.鲍尔曼曾研究过道格拉斯冷杉种子产量地区间的差异.Bolman has studied regional variation in Douglas fir seed yields.云杉和冷杉的针叶生长是有限的.The growth of spruce and fir needles is determinate....
Mr. Sebastian was looking at the boys with a bemused expression.塞巴斯蒂安先生一脸茫然地看着男孩儿们。He was rather bemused by children...他为孩子们大伤脑筋。He was rather bemused by children.他为孩子们大伤脑筋。They all sat still, all bemused by the beauty o...