To focus closely on something
何かに集中する (nanika ni shuchu suru)
"Let’s zoom in on the key issues first."
"まず重要な問題に集中しましょう。" (mazu juyona mondai ni shuchu shimashou)
to signal someone to stop, especially a vehicle
to describe exactly what is causing a situation or problem
to argue with someone verbally
to impress or surprise someone greatly
the person or thing that motivates or leads progress
to make an enormous effort
