Stories of USA Today
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 4000 Duolingo (S) - Spelling Practices
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n. (生物)囊,液囊 pouch or pouch-like structure in a plant or an animal, sometimes filled with fluid


Spelling Word: sac
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n. 氣味,香味 a distinctive odor that is pleasant; fragrance; perfume


Spelling Word: scent
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n. 方案 an elaborate and systematic plan of action; chart or outline of a system or object


Spelling Word: scheme
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v. 搔,抓,擦 cut the surface of; cause friction


Spelling Word: scratch
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n. 地震儀,測震儀 measuring instrument for detecting the intensity, direction, and duration of movements of the ground


Spelling Word: seismograph
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a. 平靜的,安詳的 completely clear and fine


Spelling Word: serene
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v. 表示,意味 denote; mean; indicate


Spelling Word: signify
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n. 石板,候選人名單提名 any rock or stone that is thin and flat for roofing or covering houses


Spelling Word: slate
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n. 潛水艇,潛艇 submersible warship; move forward or under in a sliding motion; underwater


Spelling Word: submarine
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a. 堅實的,充實的 fairly large; in essentials; material; true or real; not imaginary; solidly built


Spelling Word: substantial