朗读笔记-Reading more like an American

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Vancouver police say their arrest rate in homicide cases is going up.
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But look at the number shows many Vancouver murders remain unsolved.
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Vancouver has seen 18 homicides for each of past three years and 16 in 2006,
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roughly only a third of those have been solved. Besides of the crime scene,

witness cooperation and quality of evidence can all affect how long it
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takes investigators to do their jobs and police say sometime they just aren’t
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enough resources to process the evidence quickly.