Hi! Here my questions ~ - Why is “to throw away trash” written as “휴지를 버리다”? Why not “쓰레기를 버리다”? Because I thought “휴지” meant toilet paper. - Is the difference between 어렵다 and 힘들다 that 어렵다 refers to a mental/intellectual difficulty, while 힘들다 refers to a physical difficulty? Tysm 🙏