It is worth remembering that previous wills are nullified automatically upon marriage.
要记住的是，一旦结婚，原遗嘱自动失效。
A contract signed now might be invalidated at some future date.
现在签订的合同可能在将来的某一天就会失效。
Alcohol negates the effects of the drug.
酒精能使药物失效。
The drugs work well at first but gradually lose their effectiveness.
这些药的效果起初非常好,但后来逐渐失效.
But fairly soon real life disasters took care of publicity.
但现实生活中的灾难很快就使这个宣传失效了.
China regrets the abrogation of the Anti - Ballistic Missile Treaty.
中国对《 反 弹道导弹条约》失效感到遗憾.
The rule has been in abeyance since 1980.
这一规定自1980年起失效.
Remarriage would revoke all previous wills.
再婚会使原有的一切遗嘱失效.
Her right to the property has lapsed.
她的财产权失效了.
The medicine no longer has any effect.
这药已失效了.
Titles to the estate has not been extinguished.
财产的所有权尚未失效.
The new rule overrides all the previous ones.
新规则使以前的所有规则失效.
Residents heard an enormous bang as a safety valve on the boiler failed.
由于锅炉的安全阀失效，居民们听到了砰的一声巨响。
These outages must be tracked to build a record of failed service delivery.
对这些中断必须跟踪,以建立失效的服务提供记录.
This, of course, would nullify the effect of the move and merely accelerate inflation.
这毫无疑问会使该举措完全失效，而仅仅只是加速通货膨胀。