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  •   你查询的单词是:drilling ([ 'driliŋ ]
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  •   解释: n. 演练,钻孔
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  •   例子: 1. A hole or passage made by or as if by use of a drill.
       钻孔,打洞用或似用钻打孔或通道
    2. Valuable deposits of oil have been found by drilling.
       通过钻探发现很有开采价值的油层.
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