std
美 [.es ti 'di]
英 [.es tiː 'diː]
- abbr.(=standard)
- 网络性传播疾病(Sexually Transmitted Diseases)；性病(sexually transmitted disease)；标准(Standard)
复数：stds
std
1. | 性传播疾病（全写为 sexually transmitted disease）the abbreviation forsexually transmitted disease (a disease that is passed from one person to another during sexual activity) |
2. | 长途直拨电话（全写为 subscriber trunk dialling）the abbreviation forsubscriber trunk dialling (a system of making direct telephone calls over long distances) |