afford vt. 买得起
He can afford an apartment.
他能买得起一套住房。
long for 渴望
They long for a chance to visit Shanghai.
他们渴望有机会访问上海。
nostalgic adj. 乡愁的
Perhaps it is our human nature to be nostalgic.
也许是人类天生有一种思古之幽情。
bummed out 失望
It's okay to feel bummed out.
你觉得不开心也没错。
