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n.
(輻射,發光,放熱) very small particles of a radioactive substance that can cause illness or death


Spelling Word: radiation
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n.
(大農場經營者,牧場工人) one who owns or operates ranch or farm


Spelling Word: rancher
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n. Syn. deflection
((光線的)折射,彎曲) turning or bending of any wave, such as light or sound wave, when it passes from one medium into another of different optical density


Spelling Word: refraction
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v. Syn. free; loosen; calm
((使)鬆弛,放鬆) make less severe or strict; become less tense


Spelling Word: relax
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a. Syn. dependable; trustworthy
(可靠的,可信賴的) worthy of being depended on; trustworthy


Spelling Word: reliable
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a.
(依靠的,信賴自己的) relying on another for support


Spelling Word: reliant
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n. Syn. engagement; meeting; date
(約會,約會地點,會合) meeting at a prearranged time and place; popular gathering place; prearranged meeting point for troops or ships


Spelling Word: rendezvous
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n. Syn. translation; presentation
(表演,詮釋,翻譯) translation, often interpretive; performance of a musical or dramatic work


Spelling Word: rendition
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a.
(著名的) famous; celebrated for great achievements, for distinguished qualities


Spelling Word: renowned
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n. Syn. delegate
(代表,代理人) one that represents anything; that which exhibits a likeness or similitude; agent


Spelling Word: representative