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)
满坑满谷
mǎn kēng mǎn gǔ
1 (idiom) all over the place
2 in every nook and cranny
3 packed to the rafters
蒙在鼓里
méng zài gǔ lǐ
1 lit. kept inside a drum (idiom)
2 fig. completely in the dark
蒙昧无知
méng mèi wú zhī
1 benighted (idiom)
2 ignorant
跳出火坑
tiào chū huǒ kēng
1 lit. to jump out of a fire pit (idiom); to escape from a living hell