1·Someone with advanced cancer, say, who is offered expensive, aggressive new chemotherapy that might extend life at the price of lowering its quality often opts instead for palliative care.
例如，对癌症晚期的某病人进行昂贵而强度大的新式化疗，虽然有可能延长寿命，但降低生活质量，他自己反而会选择舒缓护理疗法。
2·It would be unfortunate if the Kremlin, rather than overhauling its security agencies and reviewing its north Caucasus policy, opts to act in similar fashion now.
若克里姆林宫不整顿安全机构，也不重新审视其北高加索政策，反而选择故技重施，则不免令人遗憾。
3·Once again Nike faces the Adidas official-sponsor shutout approach, and once again Nike opts for a digital offense. Only this time, its marketers take a very different approach.
进入到2010年的世界杯比赛，再次面对阿迪的“官方唯一制定赞助商”身份，耐克再一次选择了运用数码手段进行反击，只不过这一次，耐克的营销人员采取了非常另类的做法。
4·This is because not everyone opts to leave.
这是因为不是每个人都选择离开。
5·However, there are situations when the person who is in debt opts to settle his obligation by rendering his services.
不过，有些情况是，当人在选择解决债务的义务，他自己绘制服务。