他克服了重重困难。
He overcame many difficulties.
layer upon layer; one after another
Every character draws itself, stroke by stroke. Then grab the brush: trace it yourself and hear the word when you finish.
Nice writing!
Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.
他克服了重重困难。
He overcame many difficulties.
前方困难重重。
There are difficulties everywhere ahead.