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Learning to write well in college means learning (or re-learning) how to write plainly and clearly. Now that doesn't mean that plainness is the only good style, or that you should become a to spare, unadorned writing. Formality and ornateness have their place, and in hands complexity can carry us on a dizzying, breathtaking journey. But most students, most of the time, should to be sensibly simple, to develop a baseline style of short words, active verbs, and relatively simple sentences clear actions or identities. It's faster, it makes arguments easier to follow, it increases the chances a busy reader will bother to pay attention, and it lets you more attention on your moments of rhetorical flourish, which I do not advise altogether.