In Titles: Do Capitalize

Nouns (man, bus, book)
Adjectives (angry, lovely, small)
Verbs (run, eat, sleep)
Adverbs (slowly, quickly, quietly)
Pronouns (he, she, it)
Subordinating conjunctions 从属连词 (as, because, that)

In Titles: Do Not Capitalize
Articles 冠词 : a, an, the
Coordinating 并列连词Conjunctions: and, but, or, for, nor, etc.
Prepositions 介词(fewer than five letters): on, at, to, from, by, etc.


Examples:

Love Is in the Air
I Am the Walrus
That Was Then, This Is Now
You Are So Beautiful
This Is As Good As It Gets
Do not capitalize:


The Man Who Sold the World
In a Safe Place
The Best of The Temptations



Rattle and Hum
It's Now or Never
Nothin' but a Good Time


Live at Woodstock
Face to Face
Death Cab for Cutie
Pretty in Pink
Come in from the Cold



Special Note: The word "versus" (and its abbreviated form "vs." or "v.") is commonly left in lower case, despite its being a preposition of more than three characters.

Spy vs. Spy
Birds v. Worms

Special Note: The word "etcetera" (and its abbreviated form "etc.") is also commonly left in lower case 小写 when used to represent the phrase "and so on" or "and so forth".