成功在于坚持。
Success lies in persistence.
在于
to rest with; to lie in; to be due to (a certain attribute); (of a matter) to be determined by; to be up to (sb)
Watch it being written
Every character draws itself, stroke by stroke. Then grab the brush: trace it yourself and hear the word when you finish.
在
于
Nice writing!
Build with these blocks
Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.
在
See it in sentences
问题在于时间不够。
The problem is that there is not enough time.