A strong objection at once occurred to us.

我们立刻遇到强烈的反对。

youdao

There once occurred an earthquake in Shanghai.

上海曾发生过一次地震。

youdao

Once occurred, real estate bubble would bring severe consequences to the economic and social life of a country.

一旦发生，将给一个国家的经济和社会生活带来严重的后果。

youdao

It never once occurred to me that my parents might have been putting me on.

NEWYORKER: All That

Complaints also emerged Wednesday over how federal authorities handled the matter once it had occurred on Christmas Day.

CNN: Feinstein wants reversal of policy on no-fly list

The crises in various the smaller oil producing nations occurred once oil production and revenues dropped and subsidies declined.

FORBES: Saudi Regime Isn't The Culprit NYT's Friedman Claims, Says Prince Alwaleed