A chasm is a very deep crack in rock, earth, or ice.
N-COUNT
(事物或团体间的)显著差距，巨大分歧
If you say that there is a chasm between two things or between two groups of people, you mean that there is a very large difference between them.
例句
...the chasm that divides the worlds of university and industry.将大学和企业两个世界分隔开的鸿沟...the chasm between rich and poor in America.美国显著的贫富差距
英汉词典释义
n.
裂缝, 裂口
A chasm gaped.裂口张开了。Suddenly a huge chasm opened in the earth.大地突然裂开，形成一道深坑。A huge chasm gaped before them.他们面前有个巨大的裂痕。
分歧, 差别
a huge chasm of hate and prejudice由于仇恨和偏见而产生的巨大分歧A chasm separates my generation from my parents’.分歧使我这一代人不同于我父母那一代。There’s a chasm between rich and poor in that society.那社会中存在着贫富差距。