Writing constructors is often a repetitive task .

编写构造函数经常是重复性的工作。

The zoo constructs now , we are the constructors .

动物园现在施工，我们是施工人员。

The common loss of function in the construction of agriculture park is analyzed , and the new work ideas and suggestions are put forward to to give references for the relevant departments and constructors .

通过对农业园区建设中较为普遍的功能缺失现象的分析，提出新一轮农业园区建设的工作理念和建议，以供有关部门和园区建设者参考。

How can we know which or how many constructors to define ?

我们如何才能知道应该定义哪个或多少个构造函数？

Never call overridable methods from constructors .

永远不要从构造函数中调用被子类覆盖的方法。