The local administration says the curfew is a precautionary measure.

该地方当局说宵禁只是一项预防措施。

《柯林斯英汉双解大词典》

He was kept in the hospital overnight as a precautionary measure.

为了谨慎起见，他被安排整晚留院观察。

《牛津词典》

Police in riot gear were in attendance as a precautionary measure.

身着防暴服的警察到场实施预防行动。

《牛津词典》

Because bars, restaurants and night clubs have been closed by the state government as a precautionary measure, people who have money have few places to spend it.

VOA: standard.2009.04.30

As a precautionary measure, New Delhi rushed several battalions of paramilitary troopers to Patna.

CNN: On the Edge Again

The council has not named the staff members but said their suspensions were a "precautionary measure".

BBC: Isle of Wight Council suspensions over Cowes college delay

Residents nearby have been advised to close doors and windows as a precautionary measure.

BBC: Three injured in pressure washer 'fireball' in Walkden