fathom
🇺🇸
/ˈfæðəm/
🇬🇧
/ˈfæðəm/
to really understand or figure out something
I can't fathom why she made that decision.
我無法理解她為什麼會做出那個決定。
a measuring unit for the depth of water, which is 6 feet (about 1.8 meters) long
The lake is 20 fathoms deep at its deepest point.
湖在最深處有20英尋深。