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1. | What does it feel like to hold a tool first used at almost unbelievable 2.5 million years ago? |
| 手握一件在久远得不可思议的250万年以前就已经使用过的工具有何感受? |
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2. | You have to hold the tool as he tell you to do. |
| 你要按照他告诉你那样握拿刀具。 |
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3. | You had to hold the tool as he tell you to do. |
| 你要按照他告诉你那样握拿刀具。 |
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4. | You have to hold the tool as he told you to do . |
| 你要按照他告诉你那样握拿刀具。 |
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5. | A secure grip or hold applied by a tool or machine upon a working surface. |
| 固定器在工作面上使用工具或机器的夹紧或固定装置 |
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