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work off

 
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hiromichi



Joined: 12 Oct 2005
Posts: 999

PostPosted: Fri Dec 16, 2011 4:55 pm    Post subject: work off Reply with quote

Am I right in assuming "work off" in A and B are the same in meaning?

A. The clock works off [on] two small batteries.

B. Huge advances in technology, the argument goes, can enable doctors from different hospitals, different fields and even in different states to work off a single electronic file that would include every medical decision and diagnosis in a given patientís history.
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lotus



Joined: 25 Jan 2004
Posts: 841

PostPosted: Wed Jan 25, 2012 2:04 pm    Post subject: Reply with quote

They have slightly different meanings.

A. The clock works on/off two small batteries.
It uses two small batteries as an energy source.

B. Doctors work off a single electronic file.
Doctors can access and use a single electronic (data) file for all their medical records and diagnosis information.

--lotus
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hiromichi



Joined: 12 Oct 2005
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PostPosted: Wed Jan 25, 2012 3:52 pm    Post subject: Reply with quote

lotus:
Thank you very much.
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