He trails off, lost in thought.

清洁工走神了 陷入了沉思。

We often use that expression to mean lost in thought.

我们经常用这个短语来表示陷入沉思。

Meanwhile, motionless and silent, Captain Nemo stood lost in thought.

可是，尼摩船长在那里思考，一言不发，站着不动。

Wildeve became lost in thought, and a look of inward illumination came into his eyes.

韦狄沉思起来，眼睛里流露出恍然大悟的神色。

She was lost in thought, and did not seem to notice that everyone was looking at her.

她沉思着，似乎没有注意到大家都在看她。

" It's one of my favorites, too." He stared out through the rain, lost in thought.

“这也是我最喜欢的曲目之一。”他盯着车外的雨幕，陷入了沉思。

Harry walked slowly back to Gryffindor Tower, lost in thought about Snape, and Crouch, and what it all meant.

哈利慢慢地走回格兰芬多塔楼，一路沉思着：斯内普、克劳奇，这一切都意味着什么呢。

His gaze had wandered upward to the body revolving slowly overhead, and he seemed to be lost in thought.

他凝视着上方那个缓缓旋转的身体，好像陷入了沉思。

" Professor Dumbledore? " Harry said very quietly, for Dumbledore, still staring at the Pensieve, seemed completely lost in thought.

“邓布利多教授？”哈利很轻地叫了一声，因为邓布利多仍在凝视着冥想盆，似乎整个人都陷入了沉思当中。

We want you to feel the thrill of discovery, to get carried away by ideas, and to get lost in thought.

我们希望你们能感受到发现的快感，沉醉于创意之中，沉浸在思考中。

The Leap-frog stood still for a long time lost in thought; it was believed at last he would not jump at all.

跳蛙站在那儿，沉思了好长时间，最后大家就认为它完全不能跳。

For some time he sat lost in thought.

有一段时间他坐在那里陷入了沉思。

Holmes sat for some time lost in thought.

福尔摩斯坐了一会儿陷入沉思。

Like she's really lost in thought.

就像她真的陷入了沉思一样。

He sat lost in thought and waited.

他坐在那里陷入沉思，等待着。

But Siddhartha walked through the grove, lost in thought.

但是悉达多穿过树林，陷入了沉思。

He was silent for a while, lost in thought.

他沉默了一会儿， 陷入了沉思。

Poirot remained lost in thought for a few minutes.

波洛陷入沉思了几分钟。

The child appeared lost in thought, radiating a sense of … waiting.

孩子似乎陷入了沉思，散发出一种… … 等待的感觉。

There one might have sat the clock round lost in thought.

人们可能会整日坐在那里陷入沉思。