42.1.14. 查 (cha2, check)

Mnemonic: every dawn 旦 (dan4, dawn), men have to check if their penises are hard as wood 木 (mu4, wood, tree), and if so they have to stay in bed for a while longer because it is too embarrassing to walk out like that, see also: https://en.wikipedia.org/wiki/Morning_wood

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