As it fell, the bit was driven deeper and deeper into the ground.
落下来时，钻头就越来越深地打入地面。
To three posts driven upright in the ground.
笔直地绑在钉于地上的木桩。
But the study of their observations had been forcefully driven under-ground.
不过，研究他们的意见，有力地推动了下地面。
But the study of their observations had been forcefully driven under-ground.
不过，研究他们的意见，有力地推动了下地面。
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