你可能已经知道，这是每周一次的必要会议。

As you may know already, it's a required meeting <em>once</em> <em>a</em> <em>week</em>.

每周一次你要去做个额外化疗。

You go in <em>once</em> <em>a</em> <em>week</em> for a top-up of the chemotherapy.

他们定期会面——通常每周一次。

They meet regularly - usually <em>once</em> <em>a</em> <em>week</em>.

她多久看一次电视？每周一次。

How often does she watch TV? <em>Once</em> <em>a</em> <em>week</em>.

汽船每周一次来把邮件取走.

A steamer calls <em>once</em> <em>a</em> <em>week</em> to take off mail.

动刀片每周一次涂油.

Oil the foil after cleaning the blades <em>once</em> <em>a</em> <em>week</em>.

但我们仍然每周一次或几周一次吃定量的瘦肉。

We still eat regular lean meat maybe <em>once</em> <em>a</em> <em>week</em> or less.

他们每周一次在物理课上放映幻灯.

Slides are shown <em>once</em> <em>a</em> <em>week</em> in their physics class.

每周一次,在去除死皮后,我用它来防止长痘.

I use it <em>once</em> <em>a</em> <em>week</em> after exfoliating to prevent breakouts.

确认你发邮件的频率，将其保持在不多于每周一次，不少于每月一次。

Make sure that the frequency for your outgoing mail is set to no more than <em>once</em> <em>a</em> <em>week</em> and no less than once a month.