1. The black market trade in exotic carnivorous plants is so vigorous now that botanists are keeping the location of some rare species a secret. 现在，外来食肉植物的黑市交易非常活跃，以至于植物学家一直对某些稀有物种的位置三缄其口。
2. The flotation samples from the excavations allowed botanists to study shifts in plant-collecting habits as if they were looking through a telescope at a changing landscape. 从挖掘物中获取的浮选样本让植物学家能够研究植物采集习性的转变，就好像是用望远镜观察不断变化的景致。
3. Botanists have developed many new plants. 植物学家培育了许多植物新品种。
4. The botanists could see it in their hybrids. 植物学家在杂交植物中便可见一斑。
5. Botanists refer this flower to the rose family. 植物学家将这花归入蔷薇科。
