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 Group (U V W Y Z) - Spelling Practices
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v. Syn. undervalue
(低估,看轻) make too low an estimate of the quantity; undervalue


Spelling Word: underestimate
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v. Syn. embark; assume
(从事,承担) take on; embark on; assume


Spelling Word: undertake
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ad. Syn. unluckily
(不幸地) unluckily; by bad luck


Spelling Word: unfortunately
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a. Syn. alone; single; sole
(独一无二的) without an equal; being the only one of its kind


Spelling Word: unique
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v. Syn. speak; express
(做声,发表) speak; express; send forth with the voice


Spelling Word: utter
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n.
(谷,河谷,流域) space between ranges of mountains; area drained or irrigated by a river system; internal angle formed by intersection


Spelling Word: valley
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n.
(活门,阀) device or structure for controlling the flow of a fluid


Spelling Word: valve
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n.
(血管,静脉,木纹,矿脉,岩脉) blood vessel that carries blood


Spelling Word: vein
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n. Syn. trace
(遗迹,痕迹,残留物) trace; remains; indication that something has been happened


Spelling Word: vestige
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v.
(颤动,震动) shake, quiver; move or swing from side to side regularly


Spelling Word: vibrate