Group (12) - Spelling Practices

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(1) (外围的,切线的) peripheral; only slightly connected; digressing
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(2) (单调乏味) dullness owing to length or slowness; boredom
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(3) (节省的,抠包的) careful about money; economical
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(4) (牵引) friction between body and surface on which it moves
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(5) (平静,冷静) calmness; peace; freedom from disturbance or agitation
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(6) (论文) systematic, usually extensive written discourse on a subject
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(7) (经历,遭受) experience; suffer; pass through
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(8) (闹哄哄的,令人捧腹大笑的) characterized by loud, confused noise, or by noisy and uncontrollable laughter
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(9) (疫苗) harmless form of the germs that cause a disease to prevent people getting the actual disease
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(10) (代理的,代理人的) acting as substitute; done by deputy; experienced at secondhand