adj.深不可测的，无法理解的

The ocean's depths are fathomless, hiding secrets unknown to man.
海洋深处无边无际，隐藏着人类未知的秘密。
His sorrow was fathomless, a void that nothing could fill.
他的悲痛无边无际，一个无法填补的空虚。
The universe is vast and fathomless, filled with wonders beyond our comprehension.
宇宙浩瀚无垠，充满了我们无法理解的奇迹。
The mysteries of the human mind are fathomless, a labyrinth of thoughts and emotions.
人类心灵的奥秘无边无际，思想和情感的迷宫。
Her love for him was fathomless, a depth that she could never fully express.
她对他的爱无边无际，一种她永远无法完全表达的深度。
The forest stretched on for miles, its expanse fathomless and daunting.
森林绵延数英里，它的广袤无垠令人望而生畏。
The fathomless void of space stretches out beyond our planet, a vastness that is both beautiful and terrifying.
太空中无边无际的虚空延伸到我们的星球之外，一种既美丽又可怕的广阔。
The fathomless ocean called to her, drawing her in with its siren song.
无边无际的大海呼唤着她，用它那诱人的歌声吸引着她。
The fathomless darkness enveloped them, a suffocating embrace that left them gasping for air.
无边无际的黑暗包围了他们，一种令人窒息的拥抱，让他们喘不过气来。
The fathomless pit yawned before them, a chasm that seemed to go on forever.
无边无际的深渊在他们面前张开了大口，一个似乎永无止境的裂谷。