On either side a checker of open ditches showed where the municipal constructors had designed a system of drainage . 馬路兩旁縱橫交錯的陰溝說明承包市政工程的商人曾計劃在那里修建排水系統。
This constructor creates a non - initialized instance of the 此構造函數創建了一個
For this constructor , the context type must be 對于此構造函數,上下文類型必須為
Fields , methods , and constructors are represented by 字段、方法和構造函數分別由
Value that is passed to this constructor specifies the allowable 值指定所允許的