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你查询的单词是:
drilling
([ 'driliŋ ])
解释:
n. 演练,钻孔
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.