It was hard, but we were able to carry through with the plan we had decided on together.
I regret that I couldn't realize the dream that I had ten years ago.
I’ll do my best to prepare to accomplish my original goals.
You have to pierce this piece of information into your brain until it finally penetrates, which takes a lot of persistence. Do that and it will be quite the accomplishment!
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.