Beyond a stand of trees a small plane idled.
在树丛的那一边,一架小飞机的发动机空转着。
In the Amazon, my colleagues and I found the mortality rate for the biggest trees had tripled in small patches of rainforest surrounded by pasture land.
在亚马逊河流域,我和我的同事们发现,在被牧场包围的一小片雨林中,最大的树木的死亡率增加了两倍。
Aggressive wildfire control has left California forests crowded with small trees that compete with big trees for resources.
来势汹汹的野火控制使得加利福尼亚的森林拥挤不堪,小树与大树争夺资源。
University of Arizona extension experts say covering plants and small trees with cloth or paper can help prevent frost damage.
VOA: special.2010.01.12
Wayne Bronner says demand for small objects to hang on Christmas trees has expanded over the years.
VOA: special.2009.12.25
To save money,they may buy small bedding plants instead of more costly plants or trees.
VOA: special.2009.02.03
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