我写此信是关于贵方近期刊登的招聘广告。

I am writing ___in ___connection ___with your recent job advertisement.

警方已就这起抢劫案审问了两名男子。

Police have questioned two men ___in ___connection ___with the robbery.

我写此信是关于我们正为布朗先生筹划的聚会。

I'm writing ___in ___connection ___with the party we are planning for Mr. Brown.