立彬の日本語
734--[tbd]
身軽， 身がる， みがる
1. agile, nimble, light (of foot) 2. casual (clothing), light (e.g. luggage) 3. carefree, with limited responsibility
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捕らえることのできないもの、身軽で素早いもののたとえ、だそうです。
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It's apparently a metaphor for something uncatchable, light of body and fleet of foot.
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