A new round of depression lit the fire of classresistance.
新一轮萧条点燃了阶级反抗之火。
2
This failure is due to resistance to artemisinin, our best and last class of effective antimalarials.
这是因为对最佳，也是最后一类有效抗疟药——青蒿素，产生耐药性所导致的失败。
3
Symptoms included increased insulin resistance and atherosclerosis and higher levels of a signaling molecule that activates a class of immune defensive cells known as macrophages.