severe strain

基本解释

Meanwhile, PG9 and PG16 can also be effective against multiple HIV viral strains, including those from the spread of AIDS in Africa, the most severe strain.
同时，PG9 和PG16还可以有效地对付HIV病毒的多种毒株，包括来自艾滋病蔓延最严重的非洲的毒株。
However, the economic imperative for austerity and restructuring is already putting the governments of the euro zone’s troubled periphery under severe strain.
然而，财政紧缩和重组方案在经济层面上的紧迫性，已将麻烦不断的欧元区外围政府置于严重紧张的局面之下。
He says there are signs of severe strain on the North's Public Distribution System, or PDS - the government office responsible for providing food to citizens.
他说，有迹象显示，北韩的公共分配体系，也就是负责向民众提供粮食的政府部门的情况非常严重。

But it has been under severe strain partly because of intertribal fighting in the south.
ECONOMIST: Sudan and Darfur