to investigate or examine something
何かを調査または調べる (nanika o chōsa matawa shiraberu)
"They promised to look into the billing error today."
"彼らは今日、請求書のエラーを調べると約束しました。" (Karera wa kyō, seikyūsho no erā o shiraberu to yakusoku shimashita.)
to be very worried and not know what to do next
extremely fast
to teach someone about a subject or skill
to write something quickly for later use
no longer involved or relevant
to take the first step towards achieving something, especial...
