Of this group, 226 are alive and 161 are still active in the study, which requires the men to answer questionnaires every two years and to be interviewed personally every 15 years.
该组研究对象中的226人依然在世，其中161人在研究中仍处于活动状态，即每两年回答一份调查问卷，并在每15年接受一次个人访问。
A neuron, by sharing chemical signals with its neighbors, can be integrated into more meaningful patterns that keep the neuron active and alive.
通过与周围的神经元分享化学信息，神经元可以形成更有意义的模式，从而保持神经元的生命与活力。
The AIDS cocktails, known as highly active antiretroviral therapy or HAART, can keep patients with the deadly virus alive and healthy.
艾滋病鸡尾葡萄酒疗法，即高活性抗反录病毒疗法或HAART，可以维持病毒携带者的生命及健康。
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