然而，你的赏花时间很短，因为它们只能开48小时左右。
However, you can only enjoy the sight of the flowers for a short time, because they last for only 48 hours or so.
在同一时间，将主要用于支持该植物园的科技攻关计划，在开发新的和改进的观赏花卉和植物。
At the same time, it will be used to support the Arboretum's research programs in the development of new and improved ornamental and floral plants.
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