Beginner Level Advanced Level
INTERMEDIATE LEVEL
Content
equation ☊ 
đẳng thức ☊
→ → →
like: đẳng thức → →
aware of sth: I don't think people are really aware of just how much it costs. ☊ aware ☊
to lull sb into a false sense of security (= make sb feel safe when they are really in danger) ☊ FALSE ☊
I'm really getting into jazz these days. ☊ get into sth ☊
We are taking steps to prevent pollution. ☊ step ☊