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knowledge; understanding
rules; regulations; guideline; directions
deputy; acting
彼はお茶の心得があり作法も完璧だ。
He has knowledge of tea ceremony and his manners are perfect.
入社前に社会人としての心得を学んでおく。
Learn the basics of being a working adult before joining the company.
防災の心得を日頃から家族で共有しておこう。
Let's share disaster prevention knowledge with the family regularly.