He altered his face all at once.

他突然变了脸。

Slough off dry skin once a week.

每周除一次干皮。

I wax the floor once a month.

每月给地板打一次蜡。

Yeats divagated into Virgil's territory only once.

叶芝只有一次偏离到了维吉尔的域。

I hope you'll forgive me this once.

希望就原谅这一次。

His sister gave him a manicure once a month.

他姐姐每月给他剪一次指甲。

I took the hint and left at once.

了暗示立即离开了。

The earth orbits the sun once every 365.25 days.

地球每365.25天绕太轨道一圈。

We hang the walls with wallpaper once a year.

们每年贴一次壁纸。

Jack, you shipped with the Admiral once, didn't you?.

杰，经和舰队司令一起在船上工作过，对吧。

The earth rotates on its axis once every 24 hours.

地球每24小时依其轴心自转一次。

For amusement,we go to the movies once a week.

们的娱乐是每周去电影院看一次电影。

Her good nature can be presumed upon once too often.

不妨再利用一次她那善良的天性。

Wash poult boxes and delivery carts at least once a week.

至少每周清洗一次雏禽盒和手推车。

I am immune from the disease, for I had it once.

对这病有免疫力, 因为已得过一次了。

Sue’s daughter only visits her once in a blue moon.

苏的女儿很少来看她。

I had a stab at fishing once but I found it boring.

尝试过钓鱼，可是发现很枯燥。

The house has an absentee landlord, who visits the property once a year.

这栋房子的房主不在这儿住，一年过来一次。

I've had it with him—he's humiliated me once too often!.

对他已忍无可忍——他羞辱得够多的了。

I wired the money off at once as soon as I got your request.

一收到的请求就立即把钱电汇过去。