Technical difficulties often arise from the subjective-objective nature of the problem.(技术上的困难往往是由问题的主客观性质引起的。)
In a good marriage, both husband and wife work hard to solve any problems that arise.(在一桩美满的婚姻中，夫妻双方共同致力于解决出现的任何问题。)
The earliest humans arrived several million years ago, but only 150,000 to 200,000 years ago, did cultures, language, religion and the arts arise.(最早的人类出现在几百万年前，但直到15万到20万年前，才出现了文化、语言、宗教和艺术。)
Their allele frequencies at numerous genetic loci gradually become more and more different as new alleles independently arise by mutation in each population.(随着新等位基因在每个群体中独立突变产生，它们在许多遗传位点上的等位基因频率逐渐变得越来越不同。)
Many diseases arise from what people really don't know about in their daily life.(许多疾病是由人们在日常生活中不了解的东西引起的。)
When several individuals of the same species or of several different species depend on the same limited resource, a situation may arise that is referred to as competition.(当同一物种或不同物种中的几个个体依赖于同一有限的资源时，就会出现所谓的竞争的情况。)
Only in research on entirely new treatments are new and unexpected variables likely to arise.(只有在研究全新的治疗方法时，才可能出现新的和意想不到的变数。)
There is an increase need to resolve social problems that arise as people begin to compete for resources.(随着人们开始争夺资源，解决社会问题的需求也越来越大。)
Out of the ashes of the economic shambles, a phoenix of recovery can arise.(复苏之凤会从经济废墟的灰烬中腾飞而起。)
This metabolic cost may arise from the muscular and neural activity involved in singing or from behaviors associated with singing.(这种代谢消耗可能是由于唱歌或与唱歌相关的行为中涉及的肌肉和神经活动所产生的。)
