名词
中文翻译：Unknown
同义词：
['stone tool', 'stone axe', 'stone chisel']
例句：
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1. This jannock is made from stone and can be used for many purposes.
这个石制工具可以用于多种用途。
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2. The ancient people used jannocks to make tools and weapons.
古代人使用石器制作工具和武器。
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3. The jannock was a crucial part of their daily lives.
石器是他们日常生活的重要组成部分。