v.理解，彻底了解，弄清真相
n.英寻(测量水深单位，合6英尺或1.8米)
fathom的第三人称单数和复数

原形：fathom第三人称单数：fathoms复数：fathoms过去式：fathomed过去分词：fathomed现在分词：fathoming

The ocean is fathom deep, and we've yet to explore every corner of it.
海洋深不可测，我们还未探索其每一个角落。
He measured the room's dimensions in fathoms, ensuring they met the requirements.
他用寻丈（fathom）测量房间尺寸，确保它们符合规定。
A single fathom is equivalent to six feet, which is quite a length.
一寻等于六英尺，这是一个相当长的距离。
The ship's anchor was dropped, and it held firm after three fathoms.
船只抛下锚后，在三寻深处稳住了。
The diver descended five fathoms before encountering any marine life.
潜水员下潜五寻后才遇到了海洋生物。
The ancient mariner knew how to navigate by the depth of the fathoms.
古代海员懂得通过测量深度来导航，即"by the fathoms".
Fathoms are commonly used in nautical contexts to describe water depth.
寻通常在航海中用来描述水深。
The fisherman cast his line into the unfathomable depths of the lake.
钓鱼者将钓线投入湖的深邃之处。
She dove down to retrieve her lost necklace, disappearing for several fathoms.
她潜下去找回失落的项链，消失在数寻的水下。
The explorers had to descend many fathoms to reach the sunken city.
探险家们必须下潜很多寻才能到达沉没的城市。