A little and a little, collected together, becomes a great deal; the heap in the barn consists of single grains, and drop and drop makes an inundation.
积少成多，积少成多;谷仓里的堆是由一粒一粒的谷粒组成的，一滴一滴的谷粒形成了洪水。
积少成多，积少成多;谷仓里的堆是由一粒一粒的谷粒组成的，一滴一滴的谷粒形成了洪水。