adj.预防性的，防备的
n.预防，防止，预防措施，预防药

原形：preventive复数：preventives

They had to take preventive measures.
他们不得不采取预防措施。
You should take an effective preventive against the flood.
你们应该采取有效的洪水预防措施。
You must take some preventive measure to prevent malaria.
你们必须采取一些预防措施来防止疟疾。
Regular exercise is a preventive measure against many diseases.
定期锻炼是对抗多种疾病的预防措施。
Daily flossing is an important preventive step for maintaining good dental health.
每天使用牙线是保持良好牙齿健康的重要预防措施。
The government launched a massive preventive vaccination campaign to control the outbreak.
政府发起了一场大规模的预防性疫苗接种运动以控制疫情爆发。
Wearing sunscreen is a simple yet effective preventive measure against skin cancer.
使用防晒霜是预防皮肤癌既简单又有效的措施。
The installation of smoke detectors is crucial for fire prevention in homes.
安装烟雾探测器对于家庭防火至关重要，是一种预防措施。
Regular vehicle maintenance is essential as a preventive measure against breakdowns.
定期车辆保养是预防故障的重要措施。
Eating a balanced diet rich in fruits and vegetables helps in the preventive management of diabetes.
饮食均衡，富含水果和蔬菜，有助于糖尿病的预防管理。
The school implemented a strict antibullying policy as a preventive strategy.
学校实施了严格的反欺凌政策作为预防策略。
Practicing good hygiene, like washing hands frequently, is key to preventing the spread of infections.
经常洗手等良好的卫生习惯是防止传染病传播的关键预防措施。
The new software update includes several security patches as preventive measures against cyber attacks.
新的软件更新包含多项安全补丁，作为预防网络攻击的措施。