fathomless的音標是[?fɑ?tf?ml?s]，翻譯成中文是“無底的；深不可測的”。

速記技巧：f-fathom（測量深度）-less-無底的。

fathomless 的英文詞源為：

fathom：測量水的深度

endless：無止境的

fathomless 意為“無底的”，它是由 fathom 派生而來，fathom 在這里表示測量水的深度。fathomless 的詞義延伸表示“無法估量、無邊無際”。

變化形式：無變化。

相關單詞：

1. depth：深度 - 詞源同depthless，表示“無深度的”。

2. boundless：無邊界的 - 詞源同bound，邊界，less 無的，因此 boundless 意為無邊界的。

3. infinite：無限的 - 詞源同fathomless，表示“無法估量”的意思。

4. vast：廣闊的 - 詞源同vastness，表示“無邊無際”的意思。

5. immeasurable：無法估量的 - 詞源同measurable，可估量的，反義詞measurable 表示可度量的，因此 immeasurable 表示無法度量、無法估量的。

6. endless：無止境的 - 詞源同fathomless，表示“無法測量的”意思。

7. infinite space：無限空間 - 直接由 infinite 派生而來，表示“無法估量的空間”。

8. boundless ocean：無邊無際的大海 - 直接由 boundless 派生而來。

9. infinite universe：無限宇宙 - 直接由 infinite 派生而來，表示宇宙的無限性。

10. vastness：廣大 - 直接由 vast 派生而來，表示廣闊、無邊無際的意思。

常用短語：

1. at the fathomless depth of one"s heart

2. beyond the fathomable reaches of time

3. in the fathomless dark

4. beyond the reach of comprehension

5. into the fathomless abyss

6. beyond the realm of the fathomable

7. into the unfathomable abyss

例句：

1. I will always remember his face, at the fathomless depth of my heart.

2. She wandered into the unfathomable forest, lost in thought.

3. The ocean is beyond the reach of human comprehension, at the farthest reaches of our understanding.

4. The mystery of life lies beyond the fathomable abyss of time and space.

5. The challenges of this world are beyond my current abilities, into the unfathomable challenges of life and death.

6. He gazed into the fathomless eyes of his lover, lost in a moment of pure passion.

7. The world is a mysterious place, beyond our current understanding, into the realm of the unknown.

英文小作文：

Life is an unfathomable mystery, full of wonders and challenges that we cannot fully comprehend. We are constantly exploring and learning, trying to understand this world that surrounds us. But no matter how much we know, there will always be something beyond our reach, something that lies at the farthest reaches of our understanding.

The ocean, the sky, the stars - these are all beyond our grasp, yet they fascinate us and inspire us to continue exploring and learning. Life itself is an unfathomable abyss, full of mystery and possibility. We may never fully understand it, but that does not mean we should give up on trying. For in the unfathomable depths of life, lies the possibility of discovery and growth, the beauty of which is beyond measure.