1 . 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。
来自柯林斯例句
2 . 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。
来自柯林斯例句
3 . Alcohol negates the effects of the drug.
酒精能使药物失效。
来自《权威词典》
4 . 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.
来自《简明英汉词典》
5 . 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.
来自《简明英汉词典》
1.failure
1.expiration
1.be void
2. become invalid
3. evocation
4. lapse
5. losing effect
6. null and void
1.failure
1.failure
1.failure
1.failure
1.failure
2. 产品在使用中由于自身质的变化导致产品丧失了预定的工作能力或其性能已劣化成不合格的状态。
1.failure
2. 设备执行所需功能的能力已经终止。失效标志着从一种状态变到另一种状态。失效之后，设备即有故障。
