to continue in a strong and determined way until the end of something, even when this is difficult

resilient companies that have powered through the economic downturn 坚持度过经济下跌期的适应力强的公司

The challenge will be overwhelming at times, but we just have to power (on) through. 有时候挑战会铺天盖地而来，但是我们必须坚持到底。