To do something dangerous or risky.
危険なことやリスクのあることをする。
"You’re playing with fire if you invest without research."
"リサーチせずに投資すれば、あなたは火遊びをしていることになります。"
to flatter someone to gain favor
to accept and confront a difficult situation
someone appears active but is not thinking clearly
feeling intense jealousy
Always stay optimistic, but be ready for any outcome.
to gradually weaken someone or something