std
US
UK STD n: initialism (sexually transmitted disease) (Sexually Transmitted Disease的缩写)
SC 性传染病 xìng chuán rǎn bìng
TC 性傳染病
TC 性傳染病
SC 性病 xìng chuán rǎn bìng，xìng bìng
Education about preventing STDs is important for teenagers.
STD n: UK, initialism (STD code)
SC 用户直播长途电话号码
SC 长途电话拨号
sexually transmitted disease n: (virus, etc., passed on via sex)
SC 性病, 性传播疾病
STD code n: abbreviation (telephone: area prefix)
SC 长途区号
SC 长途拨号代码