They are initially empty (when the data graph is returned to a client) and populated as the data graph is modified.

变更摘要最初是空的（数据图刚返回客户机的时候），随着数据图的变化逐渐填充。

youdao

Begin with an empty with the ID "graph".

首先给出了一个ID为“graph ”的空。

youdao

Begin with an empty with the ID "graph".

首先给出了一个ID为“graph ”的空。

youdao