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drill(-steel) sharpener的英文翻譯是什么意思，詞典釋義與在線(xiàn)翻譯：
英英釋義
名詞 drill:
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a tool with a sharp point and cutting edges for making holes in hard materials (usually rotating rapidly or by repeated blows)
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similar to the mandrill but smaller and less brightly colored
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systematic training by multiple repetitions
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(military) the training of soldiers to march (as in ceremonial parades) or to perform the manual of arms
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make a hole, especially with a pointed power or hand tool
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train in the military, e.g., in the use of weapons
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learn by repetition
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teach by repetition
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undergo military training or do military exercises
