abbr. science and technology information system 科技信息系统；Scientific and Technological Information Services 科技情报服务；Specialized Textile Information Service 纺织特别信息服务；silicon target image sensor 硅靶图像传感器
中文词源
STIs 用法和例句提示：点击例句中的单词，就可以看到词义解释
提示：点击例句中的单词，就可以看到词义解释
People can remain infectious with some stis even after the symptoms have disappeared .
甚至在性病症状消失之后，人们仍然会感染上一些性病。
These condoms , or " skins , " are effective in preventing pregnancy , but not in preventing stis or hiv transmission .
这些套套，或者说“表皮”，对于防止怀孕有效，但无法阻止性病和艾滋病的传播。
Urban and deprived areas have the highest rates of stis .
城市和贫困地区的性传播感染的比例最高。
Now , american parents would like their teenagers to be taught that the only surefire way to avoid pregnancy and stis is abstaining from sex because that 's the truth .
Condoms also provide some protection against herpes , syphilis and chancroid , but genital ulcer stis can also be transmitted by contact with exposed infected skin .
