大家帮忙用英语解释一下从属结构和独立结构

Subordinate structure and absolute construction

Sentence Structure

Four Sentence Types in English Writing

Clauses of different types can combine to form the four types of sentences in English writing. Good writers use a variety of sentence types at varying lengths to make their writing more interesting and dynamic. Remember to use proper punctuation and a variety of connectors to make logical connections both within and between sentences.

1. A simple sentence is composed of a single independent clause and no dependent clauses.

2. A compound sentence is composed of two or more independent clauses which may be connected by a coordinating conjunction ( and, but, for, nor, or, so, yet), a semicolon alone, or a semicolon and a conjunctive adverb (also called transition).
We visited Paris last September, but my sister visited Berlin last summer.

3. A complex sentence is composed of one independent clause (the main clause)