They make it simple and explain the risk of catching AIDS to friends their own age much better than an adult can.(Para.10)
Meaning: They make the lessons of "AIDS 101" easy to understand, and explain to their peers the danger of getting AIDS much better than an adult can.
risk: n. danger
He thinks there is no risk of a war now. 他认为目前没有战争的风险。
This kind of crime constitutes a big risk to our nation. 此种犯罪构成了我们国家的巨大危险。
risk: vt. place in danger; take the chance of
The captain didn't want to risk taking his ship across the sea until he could see where he was going. 这位船长在了解其行驶方向之前不想冒险驾船穿越大海。
Don't risk it. It isn't worth it. 不要冒险，这不值得。
at risk: in danger of
Redefine "at risk" to include women from different backgrounds and marriage
status. (Para.11) 重新理解 "有危险"问题，从而把不同背景，不同婚姻状况的妇女考虑在内。
The stylists also emphasize that everyone is at risk. (Para. 12) 发型设计师也强调每个人都有危险。