to understand new concepts or ideas fast
新しい概念やアイデアをすばやく理解する (atarashii gainen ya aidea wo subayaku rikai suru)
"She catches on quickly when it comes to math problems."
"彼女は数学の問題に関してはすばやく理解します。" (kanojo wa suugaku no mondai ni kanshite wa **catch on quickly** desu)
to find an answer or solution by logical thinking
to recover energy and relax following stress or effort
to struggle and keep working hard to achieve success
to confirm choices after considering options
to agree collectively on an issue after discussion
to be unfaithful to your partner
