植物分类学家将不同的植物样本归类并贴上标签。
Taxonomists classify the samples of different planets and label them.
分类学家对动植物的分类工作进行了250多年，但是，他们仍然不能准确地回答“地球上的生物有多少种？”这一问题。
Though taxonomists have been cataloguing plants and animals for more than 250 years, they still have no exact answer to the question, "How many species are on Earth?"
在这一领域的工作机会包括生态学家，保育，分类学家，园艺家，农学家，植物遗传学家，等等。
Careers in this field include ecologist, conservationist, taxonomist, horticulturist, agronomist, plant geneticist, and many others.
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