But much remains to be done.

但是要做的事情还有很多。

At the same time, she added, much remains to be done, and it will remain a top priority for USAID.

她补充表示，与此同时，依然有很多事情有待完成，而且母婴健康依然是USAID的首要任务。

When I contemplate this fierce creature so widely distributed and strongly intrenched, I see that much remains to be done ere the world is brought under the rule of universal peace and love.

当我注视着这个分布如此广泛且根深蒂固的凶猛生物时，我发现在将世界置于普遍和平与爱的统治之下之前，还有许多工作要做。