一把稻草投在河里，即使到急流险滩也总有些稻草可以不沉。

If you throw a handful of straw into a river, some of it stays afloat even in a rapids.

youdao

在漫漫长征路上，不仅有枪林弹雨，还有急流险滩、雪山草地，更有饥饿、寒冷、疾病等等难以想象到的困难。

In the long march on the road, not only have bullets and rapids rapids, snow mountain grass, more hunger, cold, disease, etc.

youdao