The engineering team made a significant improvement to accuracy.
The engineering team made a significant improvement in accuracy.
I heard we can't use "in" here. Is this the case? What grammar rule says we can't use "in"?
I wouldn't say 'in' is wrong. It depends a bit on the context in which you want to say this. eg the accuracy of what?
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I wouldn't say 'in' is wrong.
It depends a bit on the context in which you want to say this. eg the accuracy of what?
Clive