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 Group (N O) - Spelling Practices
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n.
(航海) guidance of ships or airplanes from place to place


Spelling Word: navigation
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v. Syn. declare; publish
(通知) make known; give notice to; inform by notice


Spelling Word: notify
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n.
(营养品) a source of materials to nourish the body


Spelling Word: nourishment
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a. Syn. invalid; void; nullified
(无效的,无价值的,等于零的) invalid; void; nullified; having no legal force; invalid


Spelling Word: null
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v.
(枚举,列举,记数) enumerate; count; read according to the rules of numeration


Spelling Word: numerate
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n.
(橹,桨,划(船)) long, thin, usually wooden pole with a blade at one end, used to row or steer a boat


Spelling Word: oar
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a.
(恳切的,热心助人的) happy and ready to do favors for others


Spelling Word: obliging
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v. Syn. stop; impede
(阻塞(道路,通道等),妨碍,阻挠) stop; impede; shut out from view


Spelling Word: obstruct
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n.
(旁观者) one that looks on; spectator


Spelling Word: onlooker
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v.
(决定做,选择,选取) make a choice or decision; choose; select


Spelling Word: opt