周瑜打黄盖， 一个愿打， 一个愿挨

周瑜打黄盖， 一个愿打， 一个愿挨

zhōu yú dǎ huáng gài yí gè yuàn dǎ yí gè yuàn ái

The punishment is skilfully given by one and gladly accepted by another.