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a.
(視覺的,光學的) of or relating to or involving light or optics


Spelling Word: optical
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n.
(樂觀主義) tendency to expect the best possible outcome; belief that the universe is improving and good will win over evil


Spelling Word: optimism
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ad.
(在戶外,在野外) out of house; out of doors


Spelling Word: outdoors
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a.
(交迭(的)) covering with a design in which one element covers a part of another


Spelling Word: overlapping
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n.
(窗格玻璃) framed section of window or door that is filled with a sheet of glass or others; panel in a wall or door


Spelling Word: pane
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a. Syn. compliant; inactive
(被動的) lacking in energy or will; peacefully resistant in response to injustice


Spelling Word: passive
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n. Syn. hanging
(裝飾品,首飾) ornament, hanging from a necklace; one of a matched pair; a companion piece


Spelling Word: pendant
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v. Syn. sense; detect
(察覺,發覺) become aware of through the senses; detect


Spelling Word: perceive
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a. Syn. repeated; recurrent
(週期的,定期的) repeated; recurring at intervals of time


Spelling Word: periodic
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n.
(開拓者) originator; explorer


Spelling Word: pioneer