drill

• Pay attention to the drills in the english vowel sounds .
  注意英语元音发音练习。
• Students of english should have a lot of oral drills .
  学英语的学生应多做口头练习。
• Valuable deposits of oil have been found by drilling .
  通过钻探发现很有开采价值的油层。
• After months of drilling , oil was found off the coast .
  经数月钻探，在沿海找到了石油。
• The grain was sown in drill .
  这种谷物是条播的。
• Levelling is usually carried out with vertical drill holes .
  整平爆破通常用垂直炮眼进行。
• Did he drill your tooth ?
  他有没有钻你的牙齿？
• Rescue workers are drilling a hole on the north side of the mine .
  营救人员正在矿北边钻孔。
• How to drill barley in rows ?
  怎样条播大麦？
• This diagnosis has since been confirmed by deep-sea drilling .
  这种特征后来为深海钻探所证实。