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 4000 Duolingo (U - Z) - Spelling Practices
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a. 不能架橋的,不能逾越的 impassable; unable to be bridged or crossed; impossible to span


Spelling Word: unbridgeable
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a. 無差別的,無顯著特徵的 not differentiated; without clear distinctive characters


Spelling Word: undifferentiated
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a. 無比的,空前的 without parallel, equal, or match; unequaled


Spelling Word: unparalleled
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a. 筆直的,直立的,柱子,直立物 in an erect position or posture; perpendicular; vertical, or nearly vertical; pointing upward


Spelling Word: upright
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n. 緊急情況 emergency; pressing importance; need; pressing necessity


Spelling Word: urgency
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a. 正當的,有效的 logically convincing; sound; legally acceptable


Spelling Word: valid
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a. 口頭的 expressed in spoken rather than written words; consisting of words alone without action


Spelling Word: verbal
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ad. 相反,反之 used to state what you have just said is also true in the opposite order


Spelling Word: versa
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a. 揮發的,飛行的,可變的,爆炸的 tending to vary often or widely, as in price; inconstant or fickle; tending to violence


Spelling Word: volatile
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n. 投票 a formal expression of preference for a candidate; the number of casting in an election; the result of election


Spelling Word: vote