推荐一个可以自动将英文标题首字母大写的工具。 支持多种首字母大写规则，包括Chicago Manual of Style，
- Always capitalize the first and the last word.
- Capitalize all nouns, pronouns, adjectives, verbs, adverbs, and subordinate conjunctions (“as”, “because”, “although”, “if”, etc.).
- Lowercase all articles, coordinate conjunctions (“and”, “or”, “nor”), and prepositions regardless of length, when they are other than the first or last word.
- Lowercase the “to” in an infinitive.