A CBS correspondent in Colombo says the troops are encountering stiff resistance.

哥伦比亚广播公司驻科伦坡的一名记者报道说，军队正遭遇顽强的抵抗。

But raising taxes will likely get stiff resistance from the Republicans.

但是增税有可能会受到共和党的强烈抵抗。

At every stage, the virus would meet stiff resistance from the pigs' immune systems.

这些病毒在变异的每个阶段都会遇到猪自身免疫系统的顽强抵抗。

Despite stiff resistance by the nomadic population, people were moved to collective farms and high-yielding cattle breeds were introduced.

尽管游牧民顽强抵抗，但还是被迫迁往一块块集体农场，在那开始养殖高产畜牧业。

But he acknowledged the militants had been offering stiff resistance to his soldiers from their network of tunnels and fortified compounds.

但他承认，激进分子仍然从地道网络以及防御工事内进行顽抗。