In 2007, a Russian expedition descended in a pair of vessels more than two miles under the ice cap and deposited a Russian flag on the seabed at the North Pole.
2007年，一支俄罗斯探险队在北极用两艘潜水器潜到了两英里之下的冰层，并在海底放置了俄罗斯国旗。
2
He stood up straight with arms folded, and laughed at the cap hanging there on the pole.
他交臂直立，笑看帽子挂在杆子上那个样子。
3
Mars has water vapour in its atmosphere, and water ice in the shining cap at its North Pole.