dwell Идиома

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dwell on

think about or talk about something all the time I wish he wouldn

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dwell on/upon

1．think， often too much about sth．esp．troublesome;worry over sth．老是想着（某事）
Don'dwell on thoughts that annoy you．别老想着使你烦恼的事。
2．speak or write at length about Sth．详述
The teacher was always dwelling on the boy's faullts．老师总在数落这个男孩的过失。
Don't dwell too much on the subject．这个题目不要讲得太详细。
The speaker dwelled on traffic safety in his talk．演讲者详述了 交通安全问题。

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dwell upon

1．think， often too much about sth．esp．troublesome;worry over sth．老是想着（某事）
Don'dwell on thoughts that annoy you．别老想着使你烦恼的事。
2．speak or write at length about Sth．详述
The teacher was always dwelling on the boy's faullts．老师总在数落这个男孩的过失。
Don't dwell too much on the subject．这个题目不要讲得太详细。
The speaker dwelled on traffic safety in his talk．演讲者详述了 交通安全问题。

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Dwell on the past

Thinking too much about the past, so that it becomes a problem is to dwell on the past.

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cliffdweller

n., slang, informal A city person who lives on a very high floor in an apartment building. Joe and Nancy have become cliffdwellers they moved up to the 30th floor.

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dwell on|dwell|dwell upon

v. To stay on a subject; not leave something or want to leave; not stop talking or writing about. Joe dwelt on his mistake long after the test was over. Our eyes dwelled on the beautiful sunset. The principal dwelled on traffic safety in his talk.
Compare: HARP ON.
Antonym: TOUCH ON.

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dwell

dwell
dwell on
or dwell upon
to linger over in thought or speech; think about or discuss at length