Ah, I just don't think that I should go that far.In case Hanna needs me or something.我觉得我还是别走太远，万一汉娜需要我

In case万一，以防；如果

They watched him closely in case he should escape.

他们严密监视他，惟恐他会逃脱。

We have an auxiliary generator in case of power cuts.

我们有一台万一断电时使用的备用发电机。

I'm sorry, it's none of my business.不关我的事

none of当中谁都不, 当中没人；（三个或以上）都不

It's none of your business. Don't concern yourself with it.

这不关你的事，别管闲事。

See that none of the guests are neglected.

别怠慢了客人。

I'm gonna talk to him today.我今天就跟他说

talk to 与 ... 说话

I feel a need to talk to you about it.

我觉得有必要跟你谈谈那件事。

I tried to talk to her, but she hung up.

我想和她说话，但是她把电话挂断了