call on 访问，拜访；号召，请求。

例句：

On my way home I call on my friend Jack.

在回家的路上我顺便去拜访了我的朋友杰克。

Its never the wrong time to call on Toad.

拜访托德的时机永远不会错。

相关介绍

Well, then, supposing we go and call on HIM?

那么，我们去拜访他怎么样？

The mayor and the president paid the first call on him.

市长和议长向他作了初次的拜访。

What I wanted to ask you was, won't you take me to call on Mr. Toad?

我想问你的是，你能带我去拜访托德先生吗？

I've never even ventured to call on him at his own home myself, though I know him so well.

虽然我很了解他，但我从来没有冒险到他家里去拜访他。