你不需要工作签证，因为无需对方支付金钱作为工资。

And you don't need a working visa, as no money exchanges hands.

youdao

在这些情况下，你无需毕恭毕敬，而使用一些礼貌用语显得尊重对方的时间。

In such cases, you don't necessarily want to be to forthcoming, but use some polite phrases to show respect for their time.

youdao

无需询问我们便知道对方想要什么。

We know what the other wants without asking.

youdao