std. by

美 　英

• 網(wǎng)絡(luò)待機(jī)

例句

You can get an STD by having unprotected sex with a partner who's infected.

可以通過(guò)與感染者的無(wú)防護(hù)性行為而感染性病。

Comparative analysis on the differences in epidemic situation of STD by different epidemic situation report systems

不同疫情報(bào)告系統(tǒng)性病疫情差異對(duì)比分析

Studied on High- quality STD by Water Methods

水法制高純殺蟲單原粉新技術(shù)研究