Snuffing out crime is our best hope for safe streets and schools.

消除犯罪是对保卫街道和学校最好的保障。

Active traortation, such as cycling and walking, hel maintain a healthy weight but requires safe streets, he said.

诸如骑车和散步等积极的运动，可以帮助保持健康的体重，但这需要安全的街道。