when?till?

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norwolf

Member
Joined
Mar 26, 2008
Member Type
Student or Learner
Native Language
Chinese
Home Country
China
Current Location
China
i wonder which sentence below is correct:
they kept trying when they knew it was hopeless.
they kept trying till they knew it was hopeless.
could i get help from native speakers?
thanks a million
 

buggles

Key Member
Joined
Aug 20, 2007
Member Type
Other
Native Language
British English
Home Country
England
Current Location
England
i wonder which sentence below is correct:
they kept trying when they knew it was hopeless.
they kept trying till they knew it was hopeless.
could i get help from native speakers?
thanks a million
If they kept trying when it was useless, they kept on trying even though it was useless.
If they kept trying till it was useless, then they gave up trying once they had realised it was useless.
Buggles (Native speaker, but not a teacher).
 
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