1 lit. Sima Zhao's intentions are obvious to everyone (idiom)
2 fig. an open secret
吴下阿蒙
Wú xià ā Méng
1 General Lü Meng 呂蒙|吕蒙 of the southern state of Wu (idiom); model of self-improvement by diligent study (from unlettered soldier to top strategist of Wu)
摩拳擦掌
mó quán cā zhǎng
1 fig. to rub one's fists and wipe one's palms (idiom)
2 to roll up one's sleeves for battle
3 eager to get into action or start on a task
摩顶放踵
mó dǐng fàng zhǒng
1 to rub one's head and heels (idiom); to slave for the benefit of others
2 to wear oneself out for the general good
牝鸡司晨
pìn jī sī chén
1 female chicken crows at daybreak (idiom); a woman usurps authority