Group (R) - Spelling Practices

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(1) a. Syn. drastic; extreme(cấp tiến) drastic; extreme; arising from or going to a root or source; basic
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(2) n. (bán kính) right line drawn or extending from the center of a circle to the periphery
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(3) v. Syn. enlist; enroll(tuyển dụng) enlist; register formally as a participant; engage for military service
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(4) v. Syn. direct(chỉnh) bring into conformity with rules or principles or usage; impose regulations; fix or adjust the time, amount, degree, or rate of 
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(5) n. (tái) falling back into a former state, especially becoming worse
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(6) a. Syn. pertinent(liên quan) pertinent; having connection with matter at hand
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(7) v. (hồi hương) restore or return to the country of birth, citizenship, or origin
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(8) n. (lặp lại) act of doing or performing again
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(9) n. Syn. likeness; similarity(giống) likeness; similarity in appearance or external or superficial details
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(10) n. Syn. materials; abilities(tài nguyên) materials; abilities; available source