预防: prevent; take precautions ag ...的: 4次方是 The fourth power of 2 i ...预防的,做预防的,妨碍的: preventive化学预防的: chemoprophylactic可预防的: preventible能预防的: precludable未预防的: unprotected预防的,防止的: preventive噪声预防的: noise precaution预防措施;预防剂;预防的: preventive预防措施预防法预防的: preventative牙龋预防剂,牙龋预防的: dental caries prophylactic第一节 社区群体预防的原则: principles of prevention of dental caries in community社区群体预防的原则: principles of prevention of dental caries in community预先警戒的, 预防的, 留心的: precautionary谨防的: cautious in the habit of looking out for possible danger or trouble; wary of消防的: firefighting; protective预防: prevent; take precautions against; guard against 贯彻以预防为主的医疗方针 carry out the policy of putting prevention first in medical work; 采取特殊的预防措施 take special precautions; 预防疾病蔓延 prevent a disease from spreading; 欧洲人吃瓜作为预防晕船的方法。 europeans take melons for a preventive against seasickness.; 预防措施 precautionary measure; preventive measures; prophylactic measures; 预防犯罪 anticrime; 预防疾病 prevent disease没有设防的: defenceless设防的城市: the embattled city设防的营地: a fortified camp协防的强度: help defense strength不设防的城市: undefended city冷不防的打击: surprise没设防的城市: open city