chasm
/ˈkæzəm/noun
1- a deep fissure in the earth, rock, or another surface（土地、岩石等表面的）深沟。
1.1
- figurative a profound difference between people, viewpoints, feelings, etc.〈喻〉 巨大差异, 鸿沟：
the chasm between rich and poor.
贫富间的巨大差异。
派生词
chasmic
adjective （rare 〈罕〉 ）词源
late 16th cent. （denoting an opening up of the sea or land， as in an earthquake）： from Latin chasma, from Greek khasma 'gaping hollow'.