4000 Duolingo (N O) - Spelling Practices

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(1) n. notch [___] an elementary particle with 0 charges and mass about equal to a proton

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(2) n. niken a coin worth one-twentieth of a dollar

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(3) v. bắt buộc force; bind by an obligation; cause to be indebted; do a service or favor for

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(4) a. hiển nhiên exposed; easily discovered; plain

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(5) a. ngoài khơi at some distance from the shore

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(6) a. khứu giác relating to, or contributing to a sense of smell

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(7) a. đục impenetrable by light; not transparent; not reflecting light; having no luster

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(8) a. trật tự conformed to order; in order; regular; well-regulated

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(9) n. quặng a mineral that contains metal that is valuable enough to be mined

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(10) a. đông of or relating to the countries of the orient or their peoples or cultures; eastern