C2131 Outside of the Country This Is the First Time I've Seen It Right

"In class, do you understand what the teachers are saying?" This time, it was Tang Guo'er who asked. He did not know what kind of situation he was in overseas at that time. After all, he had lived overseas for six years. When he came back, he only used Mandarin. He did not know if he was used to it.

Furthermore, he heard from Gu Yebai that he had not attended school in these six years