std.
美 [ˌes ti: 'di:]
英 [ˌes ti: 'di:]
- n.性传播疾病（全写为 sexually transmitted disease）
- abbr.(=standard)
- 网络标准；标准差；规格
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) |