vanity
n
1 [U] having too high an opinion of one's looks, abilities, etc; conceit 自负; 虚荣; 虚荣心
not a trace of vanity in her behaviour 在她的举止中毫无虚荣表现
tickle sb's vanity, ie do or say sth that flatters him 迎合某人的虚荣心
injured vanity, ie resentment caused by some slight or humiliation 受到伤害的虚荣心.
2 (fml 文)
(a) [U] quality of being unsatisfying or futile; worthlessness 不满意的或无益的境况; 无价值
the vanity of human achievements 人类成就之徒劳无益.
(b) vanities [pl]
vain, worthless thing or act 无意义、 无价值的事物或行为.
That sounds like a good idea. I have a few friends I could ring to see if they're free.
听起来是个好主意。我可以打电话给我的几个朋友看看他们是否有空。
You have to learn when to ask for help and when to ask for information.
你得学会什么时候请求帮助,什么时候打听信息。
I am sorry that you have a disagreement with your father. Personally, I think it is important to follow your interests and your abilities, and it sounds as though you have plenty of both of these already.