In laboratories, healthy adult human brain neurons typically live no more than a few hours, making extensive research impossible.
2
此外,科学家无法再生健康的神经元,所以在严重神经紊乱的实验治疗中无法使用神经元。
Furthermore, scientists' inability to reproduce healthy neurons has prevented the use of neurons in experimental treatments of severe neurological disorders.
3
邵留了1000元给他的老师,还有一张卡片,上面写着:“亲爱的莫老师,祝您健康。您的学生邵国华。”
Shao left 1,000 yuan to his teacher as well as a card which reads, "Dear Ms. Mo, wish you good health. Your student, Shao Guohua."