The same way you would when using any other headset ( dial the number on the phone or use voice command).

First you lift the receiver, wait for the dialing tone, then dial the number.

首先拿起话筒，等拨号音响了之后，再拨号码。

If you know the area code and the phone number, it's usually cheaper to dial the number yourself.

如果你知道区号和电话号码，你就能更便宜地打电话。

We call directory assistance for a phone number, dial the number and then forget it.

我们向电话查号台询问一个电话号码，拨打这个号码，然后便忘记了。

First you deposit a coin in a slot, then you dial the number.

你先在槽里丢一枚硬币，然后再拨号码。

You dial the number, and the device activates.

你只要播个号码，装置就被激活了。

dial the number he gives you;

拨打他给你的号码；

Please hang up and dial the number again.

请挂电话然后再拨一遍。

You pick up the phone and automatically without any thought, dial the number.

你拿起电话，什么也没多想，就拨通了电话。

You grab the phone and dial the number to your office.

您拿起电话，拨去办公室。

A: First you insert the card, then you dial the number.

你要先插卡，然后再拨号码。

Please wait a moment, I'll dial the number for you.

请等一等。我替你拨号码。

He put the newspaper aside and used a direct outside line to dial the number himself.

他把报纸放在一旁，拿起外线电线，动手拨号。

First you dial the number, then you Can speak to the operator.

首先你得先拨号，然后就可和接线员通话了。

It has remained an issue for us that we watch carefully.

对我们来说，这仍是一个需要仔细观察的问题。

Necessary to watch carefully in order do not make nails smaller than you need.

要仔细观察，防止钉子制作的比您所需要的更小。

What they did was step back from the crowd and watch carefully to see where everyone else was going.

他们所做的是从人群中走出来，仔细看一看别人上哪了，然后，只不过朝另一个方向前进。

At what point that will cause them to make different decisions obviously is something we have to watch carefully.

至于要到什么程度才能使伊朗作出不同的决定，这就是我们必须仔细观察的。

Watch carefully the morphological and behavioral changes of hydra through time, record in detail ensuing changes and take pictures.

通过时间的积累、仔细观察他们的形态和行为变化，记录变化的细节并且拍摄照片。

The video unsurprisingly starts with 'Danielle' as a small girl and at first it is as if nothing is happening, but if viewers watch carefully they can see the ageing process effecting the girl's features very slowly.

视频不出意外地以小姑娘丹妮尔开头。一开始看着视频觉得似乎没什么变化，但如果仔细看下去，观众会看出女孩面容细微缓慢的老化过程。

If you watch carefully, you'll see how the trick is done.

如果你仔细观看，你就会发现那个把戏是怎么耍的。