Need help understanding 爱慕虚荣 I came across this phrase 爱慕虚荣 today in a piece of writing. When I use Goggle translate it tells me 爱慕虚荣 means "vain", but 虚荣 by itself also means "vain" and when I search for "vain" and ask for the Chinese translation I only get provided with "虚荣".

So does adding 爱慕 at the front change either the meaning or connotation?

Is 爱慕虚荣 commonly used when speaking or is it better to just use 虚荣?
虚荣 is a noun as well, meaning vanity. Now it's easy to get what 爱慕虚荣 means -- pursuing superficial things. 爱慕虚荣 sounds more literary. When referring to the character of a person, it is fine to say both 她是一个爱慕虚荣的人 and 她是一个虚荣的人. Both are common. The choice of the word also depends on the actual construction of the sentence. If there are other two-character words used in parallel, such as "他虚荣,自负,贪婪", in which you wouldn't want to use 爱慕虚荣 because it'll break the (sort of) rhythm of the sentence.