- 深入人心 shēnrùrénxīn ingrainedto enter deeply into people's hearts or have a significant impact on the public consciousness
- 深入浅出 shēnrùqiǎnchū explain simplyto explain a complicated subject matter in simple terms
- 诱敌深入 yòudíshēnrù lure the enemya military tactic of deliberately retreating or offering a lure to entice the enemy to penetrate deep into one's own territory, so as to surround and annihilate them.