n.英寻（=6英尺)
vi.测量深度
vt.彻底了解；测深
The ship sank in four fathoms. 这条船沉下四英寻。
用作不及物动词 (vi.)This kind of love is difficult to fathom, but it's fundamentally reliable. 虽然很难去测量这种爱有多深，但是它却完全可以信赖。
用作及物动词 (vt.)He dipped the stick into the water to fathom its depth. 他把棍条浸入水中，试探水的深度。
