flints
n.
燧石，火石( flint的名词复数 );
（打火机等的）打火石;
例句:
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Having elicited sparks from two flints he lighted a large fire.
来自G. J. Adler
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Or perhaps your flints are worn out; that does happen sometimes.
还有,你们的火石也许用完了, ——这是常有的事.
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Remarkably few genuine flints exist, considering the vast scope of the story.
鉴于故事涉及范围之广,只有极少的“弗林特”存在.
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Flints were found in association with the prehistoric remains of the bear.
科学家发现燧石与熊的史前残骸有关.