Shortcut Pre-calculation: For the most commonly used speed profiles, the travel costs (time/distance) for shortcuts between border points within each cluster are pre-calculated and stored. (Each border point effectively has an "entry" and "exit" aspect for directed travel).
Instagram will soon notify parents of teens who search for suicide or self-harm content on its platform, company officials announced Thursday.
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Watch: How the Tumbler Ridge school shooting unfolded
（六）违反规定不及时退还保证金的；