I will tell the result by telegraph.

我报告诉你结果。

I telegraphed instantly I arrived there.

我一到了那里就报。

Brevity is essential when you send a telegram or cablegram ; you are charged for every word.

报最主要的简短，因为每一个词要收的。

We cabled congratulations to him.

我报祝贺他。

Mother telegraphed me yesterday.

妈妈昨天报给我。