The skulls had a hole drilled into the forehead .

在头骨的前额上钻了一个洞。

6 Large wells are drilled along the center of the chamber .

沿采矿场中心钻有6个钻井。

Speculators drilled thousands of holes .

投资者打了上千个洞。

The doctors then drilled a hole into it to insert a lens .

然后，医生在它上面钻一个洞，插入一个晶状体。

More wells will now be drilled across kenya , which also holds out hopes for offshore exploration blocs .

建议译为：肯尼亚将在全国范围内钻更多油井，同时对其近海勘探区块也抱有一线希望。