know which side your bread is buttered (on)
informal词库：同义词和关联词
- assimilate
- audit
- be no stranger to sth idiom
- blended learning
- bone up
- brain training
- by-heart
- cut your political, professional, etc. teeth idiom
- deskill
- gen up
- hear tell (of) idiom
- know sth back to front idiom
- know sth like the back of your hand idiom
- knowable
- mug
- pick sth up
- quick
- reskill
- revision
- tell
