燕子衔泥垒大窝
phrase- the swallow's nest is built one beakful of mud at a time (idiom)
- many a little makes a mickle
Its characters
Learn 燕子衔泥垒大窝 in real texts
With a free account, hover any word in the library for its meaning, hear it read aloud, save words for review timed to your memory, and see how much of each book you already know.