Beginner Level Advanced Level
INTERMEDIATE LEVEL
Content
dog blood; false cardamom ☊ 
máu chó ☊
→ → →
like: máu chó → →
the blood supply to the brain ☊ blood ☊
And that is the crux of the matter (= the most important thing about the situation). ☊ matter ☊
select sb/sth: a randomly selected sample of 23 schools ☊ select ☊