Group (U V W Y Z) - Spelling Practices

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(1) a. (地圖上沒標明的) not surveyed or investigated; not charted or recorded on a map or plan
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(2) v. Syn. reveal; expose; disclose(發現,揭示) remove the cover from; expose; disclose
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(3) a. (不舒適的,憂慮的,著急的) not easy; difficult; restless; disturbed by pain, anxiety
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(4) n. Syn. plants(植物,草木,植被) plants of an area or a region; plant life
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(5) n. Syn. speed(速度) rapidity or speed of motion; swiftness
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(6) ad. (相反,反之) used to state what you have just said is also true in the opposite order
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(7) n. Syn. trace(遺跡,痕跡,殘留物) trace; remains; indication that something has been happened
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(8) n. (老兵,老手) someone who has given long service
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(9) a. (機警的,警惕的) attentive to discover and avoid danger, or to provide for safety; wakeful; watchful; circumspect; wary
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(10) n. (胡桃,核桃樹) tree with 10 - 40 meters tall; hard, dark brown wood of any of these trees