Combining Independent and Dependent Clauses According to the Purdue OWL, an independent clause is “a group of words that contains a subject and verb and expresses a complete thought.” A dependent clause is “a group of words that contains a subject and verb but does not express a complete thought.”
可以通过3种方式连接：
（一）FANBOY
（二）分号
（三）分号+连接词+逗号
https://www.pfw.edu/offices/learning-support/documents/combining-independent-and-dependent-clauses.pdf
还可以参考：
英文中标点符号的用法：
https://owl.purdue.edu/owl/general_writing/punctuation/punctuation/index.html