Group (U V W Y Z) - Spelling Practices

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(1) a. Syn. supersonic(siêu âm) supersonic; higher in frequency than the range of sound perceptible to the human ear
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(2) v. Syn. undervalue(đánh giá thấp) make too low an estimate of the quantity; undervalue
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(3) a. (khó chịu) not easy; difficult; restless; disturbed by pain, anxiety
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(4) a. Syn. unprincipled; immoral(vô đạo đức) unprincipled; lacking honesty
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(5) ad. Syn. absolutely; completely(hoàn toàn) absolutely; completely
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(6) n. (chân không) empty area or space; electrical home appliance that cleans by suction
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(7) v. Syn. disappear(biến mất) disappear; pass out of sight, especially quickly; die out
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(8) n. Syn. cover; hide(che) a length of cloth worn by women over the head, shoulders, and often the face; cover; hide
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(9) a. Syn. bold(mạo hiểm) willing to try new things and take risks; bold
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(10) a. Syn. critical; animated(sống còn) full of life; animated; necessary to continued existence; living or breathing