He was on his annual pilgrimage to Mecca when he fell ill.

他一年一度前往麦加朝圣途中病倒了。

In this country pornography was once sold under the counter.

该国, 色情书画曾一度黑市出售。

Many once prosperous northern mill towns have shrunk as industry has moved to the South.

因为工业迁移到了南方，许多一度繁荣北方磨坊小镇都减小了规模。

The plague once could wipe out a village.

鼠疫曾一度可以夺走整个村庄村民生命。

Africa was once parceled out among the European powers.

非洲一度为欧洲列强所瓜分。

He became very depressed and even got suicidal at one point.

他变得十分消沉，甚至一度想自杀。

The yearly campaign to raise funds for the Red Cross is already under way.

一年一度为红十字会募集运动已进行中。

The grandfather had assembled all the members of the family for the annual picnic.

一家人聚一起进行一年一度野餐。

He was up for a time and then, without warning, despondent again.

他一度兴高采烈, 但忽然又情绪低落下来。

He was a doctor's aid for a time.

他一度做过一名大夫助手。

The annual competition has encouraged the emergence of several talented young musicians.

每年一度比赛造就了若干卓越年轻音乐家。

In his youth he had been sucked into a hippy cult.

他年轻时候一度过着嬉皮士式生活。

It once seemed inconceivable to everyone that men should travel to the moon.

"人们一度认为,人飞上月球似乎是不可想象。"

The institution of slavery was once widespread.

奴隶制度一度广为流行。

She temporarily lost her balance during the long months of solitude.

与外界隔绝漫长岁月中, 她一度失去心态平衡。

He’s been extremely sick, but thankfully he’s off the danger list now.

他一度病入膏肓,不过万幸是,他现已经脱离危险了。

For a brief time Texas was a sovereign nation.

得克萨斯一度是个主权独立国家。

You are looking at the annual downhill cowboy skiing competition that involves slalom and lassoing skills.

你现正观看是每年一度牛仔滑降比赛，涉及障碍滑雪技能和套索技能。

This island was once French territory.

这个岛一度是法国领地。

A step in temperature on the Fahrenheit scale is smaller than a step on the Centigrade scale.

华氏温度计一度比摄氏温度计一度小一些。