be lost in thought

基本解释

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。
www.voice-english.com
Overture, which used to be known as GoTo.com, lost the search war in no small part because it thought that money alone could solve the problem of spam in search results.
Overture过去以GoTo.com为人所知，它认为单凭金钱就能够解决搜索结果中的垃圾信息问题，因此在搜索大战中彻底落败。
Could it be valid? No. some of you are getting there, some of you who I thought has got there has gotten themselves lost in the mean time. Okay lets. Okay.
这可能有效吗？不，有些人明白了，我想有些人,在时间中迷失了，好。

And he looks away—he pretends to be too lost in thought to help out.
NEWYORKER: Noon
Now judged to be too moderate, he lost his long-time job as interior minister, but was nonetheless thought to be in line to be speaker of parliament (Iran's third-most-important post, after the supreme leader and the president) after the election.
ECONOMIST: The people against the mullahs
Last night the top remaining seeds in both conferences ( Chicago Bulls and Los Angeles Lakers) lost on their home courts to teams many thought would be knocked out in the first round ( Atlanta Hawks and Dallas Mavericks).
FORBES: NBA Action Is Fantastic