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1. |
[exp,v5r]
▶ to think hard about (something that one doesn't know much of) ▶ to rack one's brain |
2. | A 2018-05-19 01:37:11 Jim Breen <...address hidden...> | |
Refs: | JLD, https://proverb-encyclopedia.com/eigoyaku/ |
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1. | A* 2018-04-28 19:48:49 | |
Refs: | http://tantaka.com/kotowaza/2005/10/post_162.html |