risk behavior的用法和樣例：
例句
- Sharing the same syringe in illegal drug injection is a high risk behavior for HIV infection through blood.
共用注射器靜脈吸毒，是經血液傳播艾滋病的高危險行為。 - 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.
本研究目的主要針對搖頭丸犯罪嫌疑人，調查其對感染愛滋病危險行為之認知以及保險套使用行為。
