3.The poplar trees lined the redbrick driveway, which led to a pair of wrought-iron gates.
那条通向两扇锻铁大门红砖车道两旁植满白杨。
4.A towhead is a sandbar that has cottonwoods on it as thick as harrow-teeth.
沙洲是一片沙土岗子,上面长满了白杨,密得象耙齿一般。
5."Every April, when these trees become mature, they will spread the blowball," she said.
韩研究员说,每年4毛白杨果实成熟时便会开裂并释出杨絮。
6.Sumac leaves glow red in the autumn light at the Tallgrass Prairie National Preserve in Cottonwood Falls, Kansas.
漆树叶发出光芒红色在秋天亮光,在Tallgrass大草原保存地是白杨一种落叶,堪萨斯州。
7.According to the researchers, "brava" and "Topol-M" intercontinental ballistic missile will be the future of Russia's strategic nuclear forces, the main body.