| 单词 | 作为工具 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔Oldowan〕Of or relating to an early stage of African Paleolithic tool culture characterized by choppers and bifacial chopping tools.奥杜威文化的：非洲旧石器时代工具文明早期的或与其相关的，特征为制造切刀与双面切刀作为工具美国传统〔advance〕They use the Internet as a tool to advance their research.他们用因特网作为工具来促进研究工作。麦克米伦高阶〔flint〕A piece of flint used as a tool by primitive human beings.打火石：原始人作为工具用的一块打火石美国传统〔microlith〕A very small blade made of flaked stone and used as a tool, especially in the European Mesolithic Period.小石器，微块：以石片制造非常小型的刀刃以作为工具，尤其是在欧洲中石器时代美国传统 |
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