逗号

Similar in principle to the enclosing of parenthetic expressions between commas is the setting off by commas of phrases or dependent clauses preceding or following the main clause of a sentence.

类似将附带说放在逗的规则，位在句子主要子句前或后的片语或从属子句，也应逗开。

There is the name of the street and the number of the doorplate on the first line, the name of the city on the second line, and follows the name of the province, state, or the area.

第二行写市名，后面加省、州或区名，市与省和州用逗开。