1. The substitute teacher did a bad job in the class and many students did not like him. Being rejected by those students really hit him hard.2. His mother just died of cancer. Losing his mom really hit him hard.
hit somebody hardhit somebody hard = 對某人打擊很大
In contrast to the rugged impression of denim, the carefully selected flannel fabric features a delicate, soft txture. Flannel brings out a city woman's delicate taste in clothes.