to stop a problem before it gets worse
問題が悪化する前に止める (mondai ga akka suru mae ni tomeru)
"We should nip it in the bud before it becomes serious."
"それが深刻になる前に止めるべきです。" (sore ga shinkoku ni naru mae ni tomeru beki desu)
a small part of a much bigger problem
to organize things properly before taking action
To suddenly think of something.
to make a serious mistake or spoil something
To leave a job or organization suddenly.
very wise or knowledgeable