translation.en: They have to drill holes in the ice, dive down into the water -- cold, cold water -- to get hold of the instrument, bring it up, do any repairs and maintenance that they need to do, put it back and get out before the ice melts.
translation.zh: 他们必须在冰上钻洞， 跳进水中，极冷极冷的水中， 去找到水中的设备，并且将其取出， 他们需要去完成所有的维护和修养工作， 而且要在冰融化之前将其刚回去，再取出来。