- Both strains quickly invaded local hospitals when needle sharing and other unhealthy practices ensured the rapid spreading of the infection by bringing people into contact with contaminated body fluids.
出自-2013年6月听力原文
- By contacting contaminated body fluids
出自-2013年6月听力原文
- I've often heard that medieval glass windows are thicker at the bottom because glass flows like a fluid.
2018年12月六级真题（第二套）听力 Section A
- Pipitone says if you increase protein, you also have to increase your fluid intake.
2019年12月六级真题（第二套）阅读 Section B