Sullivan became the first woman to visit Challenger Deep at the bottom of the Mariana Trench.

沙利文成为第一个到马里亚纳海沟深处“走访”挑战者深渊的女性。

CHALLENGER DEEP. This spot in the ocean near Guam is the deepest point on Earth—nearly 7 miles down.

挑战者深渊。这个关岛附近海洋中的地方是地球上最深的地方-有将近7英里深。

Put another way, the depth of the Challenger Deep is roughly the same height that commercial airliners travel.

换言之，这一深渊挑战者跟民航客机的飞行高度大致相同。