While I was teaching, I observed that Salina is miles away from the lecture.

當我在教學時，我注意到薩利娜在沒認真在聽講座。

That meeting was quite important, but you were miles away.

那次會議很重要，但你思想不集中。

You could tell by the expression on her face that she was miles away, thinking about home.

你可以從她臉上的表情看出她在開小差想家了。

Are you even listening to me? You seem a miles away.

你在聽我說話嗎？你好像注意力不集中。

值得注意的是，雖然 light years away 的構造跟 miles away 類似，但是它的寓意跟 miles away 的确是天壤之别，因此在學習的時候要區别對待，不能一概而論，例如：

light years away 遙遙無期，遙遠

It all happened when I was at college, which seems light years away now that I'm over 50.

這一切都發生在我上大學的時候，現在我已經50多歲了，這似乎離我很遙遠。

Full employment still seems light years away.

充分就業好像依然是遙遙無期。

不集中思想做事的人，往往心不在焉或在空想，因此我們還可以使用形容詞 dreamy 和 absent-minded 來表達相關的意思，例如：

She had a dreamy look in her eyes.

她眼裡帶着心不在焉的神色。

Carol was absent-minded and a little slow on the uptake.

卡蘿爾心不在焉，反應有點遲鈍。

詞或詞組辨析：

1. inevitable [ɪnˈevɪtəbl] 意為”不可避免地“等

2. wealthier [ˈwɛlθɪə] 意為”富有的，富裕的“等

3. decamp [dɪˈkæmp] 意為”偷偷逃走，突然離開“

4. abscond [əbˈskɒnd] 意為”逃走，（攜款）潛逃“

5. lose track of 意為”不了解…的動态，與…失去聯系“

6. slow on the uptake 意為”領悟得慢“

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