n.英尋（=6英尺)
vi.測(cè)量深度
vt.徹底了解；測(cè)深
The ship sank in four fathoms. 這條船沉下四英尋。
用作不及物動(dòng)詞 (vi.)This kind of love is difficult to fathom, but it's fundamentally reliable. 雖然很難去測(cè)量這種愛有多深，但是它卻完全可以信賴。
用作及物動(dòng)詞 (vt.)I cannot fathom his meaning. 我不能徹底了解他的意思。
He dipped the stick into the water to fathom its depth. 他把棍條浸入水中，試探水的深度。
