As an extra precaution against an ongoing down market, Narayanan suggests building in a "margin of safety" : a 3 to 5 percent premium over the target hurdle rate.

作为对持续下跌的市场的额外预防措施，Narayanan建议建立“安全系数”：一个超过最低预期资本回收率3% - 5%的溢价。

youdao

They took heavy coats as a precaution against the possibility of cold weather.

他们携带厚重的外套，以预防冷天来袭。

youdao

Equipment is always carefully sterilized as a precaution against infection.

仪器设备总是经过仔细消毒以防感染。

youdao

"Every precaution has been taken against international and local terror threats for the 2010 FIFA World Cup."

VOA: standard.2010.06.02

The bars were originally taken out of Germany as a precaution against an invasion from the Soviet Union.

BBC: Gold bars

Another basic precaution against the small-fry hacker is to turn on security features built into the operating system, Winkler said.

CNN: Known vulnerabilities are No. 1 hack exploit

One way to do this would be to reduce the incentive for households to save money as a precaution against health emergencies.

ECONOMIST: The government��s plans are still something of a mystery