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to allow; to let (someone) do; to make (someone) do
子どもにやりたいことを遣らした。
I let the child do what they wanted to do.
監督は若手に試合に出るチャンスを遣らしている。
The coach is giving young players a chance to play in matches.
自由に遣らすと人は伸びると言う。
They say people grow when given the freedom to do things their own way.