They serve the purpose of changing hydrogen into breathable oxygen.它们的目的是为了把氢气转化为可供呼吸的氧气(此处仅指电影《Assignment:Outer Space》中太空植物的"光合作用").And they're as necessary here as the air is, on Earth.它们在这里的重要性如同地球上的空气一般。But I still say, they're flowers.但我想说的是，它们是花，仅此而已。If you like...随你怎么想吧。Do you sell them?你卖这些花吗？I'm afraid not.我想我恐怕不卖它们。But, maybe we could make a deal.但也许，我们可以做个交易。What do you mean？你的意思是？Oh, you see, you won’t have to send them anywhere. I’ll pay for them, and then, I’ll leave them here, for you. 喔~ 你看，你不必把花送到任何地方。我会买下她们，然后我就会离开，花送与你。