Peter Brown was watching here when he suddenly heard two people whispering nearby.
At first, Peter didn't pay much attention to their conversation, but then he started listening when he heard them discussing something about qualification certificates.
"This time it's a Tier 3 qualification certificate!"
"Isn't it a third-level qualification certificate? Why is it Tier 3?"
"That's what generally people talk about. The academy has reformed now; the certificates are now divided into three tiers: upper, middle, and lower. Didn't you know?"
"I really didn't know about this."
"I heard that the academy has reformed the certificates, changing the previous status of students."
"Tell me how."
