risk behavior的用法和样例：
例句
- Sharing the same syringe in illegal drug injection is a high risk behavior for HIV infection through blood.
共用注射器静脉吸毒，是经血液传播艾滋病的高危险行为。 - The main purposes of this study were to investigate the knowledge related to the risky behaviors of HIV infection , and the condom use behavior among MDMA arrestees.
本研究目的主要针对摇头丸犯罪嫌疑人，调查其对感染爱滋病危险行为之认知以及保险套使用行为。
