to stop overthinking or feeling uncertain
混乱を解消する (konran o kaishō suru)
"Once she let go of confusion, everything became clear."
"彼女が混乱を解消したとき、すべてが明確になった。" (Kanojo ga konran o kaishō shita toki, subete ga meikaku ni natta.)
to use previous studies as a base for innovation
to register at a hotel or airport
to think that you are better than someone
to organize activities jointly across different areas or tea...
to set the basic structures needed for success
to develop something gradually to reach a goal