contact sb 还是contact with

contact sb 和contact with都可以，若句中contact作动词词性时是及物动词时，不与with连用；动词词性时不及物动词时，可使用contact with sb的搭配，意为与某人联系。

contact with sb

与…有交往;

举例：

They are in twice daily radio contact with the rebel leader.

他们一天两次通过无线电通信系统与反叛者领导人保持联系。

I hardly need to say that I have never lost contact with him.

几乎不用说，我从未和他失去联系。

Contact with other disabled yachtsmen of like mind would be helpful.

联系一下其他具有同样想法的残疾帆船赛手是会有帮助的。

Though they all live nearby, I lost contact with them really quickly.

虽然他们都住在附近，我真得很快就与他们失去了联系。

I don't have much contact with my uncle.

我和叔父甚少联系。

He was in direct contact with the kidnappers.

他与绑匪有直接联络。

They are in direct contact with the hijackers.

他们与劫机者直接联系。

Contact with other people is a basic human need.

和他人接触是人的基本需要。

She was sorry that she'd lost contact with Mary.

她懊悔跟玛丽失去了联系。

We had already established contact with the museum.

我们已经与那个博物馆建立了联系。

She has kept in close contact with the victims' families.

她与受害者的家人一直保持着密切的联系。

contact sb

联系某人;

举例：

I will contact you later to advise you when to come.

稍后我会与你联系，通知你何时前来。

I will contact you by letter.

我会给你写信联系的。

He was unable to contact Blake by radio.

他未能通过无线电和布莱克取得联系。

Can you suggest how I might contact him?

我怎么才能联系上他，你能出个主意吗？

I've been trying to contact you all day.

我整天一直在设法与你联系。

You can contact us by e-mail.

你可以通过电子邮件跟我们联系。

If necessary , you can contact me at home.

必要的话，我在家时你也可以和我联系。

We will contact you again if the need arises.

如果有必要，我们会再次和你联系。

Contact your doctor if the cough persists.

如果持续咳嗽，就与医生联系。

I'll contact them soon. Meantime don't tell them I'm back.

我会尽快和他们联系，在此期间，不要告诉他们我回来了。