created sense approved 燕子衔泥垒大窝/燕子銜泥壘大窩 · yànzixiánnílěidàwō · gradual accumulation
燕子衔泥垒大窝 / 燕子銜泥壘大窩
yànzixiánnílěidàwō
gradual accumulation
The swallow's nest is built one beakful of mud at a time; used as an idiom to describe how great things are achieved through persistent, small efforts or how many small things add up to a lot (many a little makes a mickle).
学习知识如同燕子衔泥垒大窝，只有日积月累，才能学有所成。