Although I didn&#39t know the five police officers who were killed, or the seven who were wounded in Dallas this week - I really did know them.虽然我不认识本周达拉斯被枪杀的五名警察，以及负伤的七名警察，但我确实了解他们。They were the folks I grew up with: The boy with the most courage and the most compassion他们是与我一起长大的人：是最有勇气和最有同情心的男孩；th