translation.en: So by then, Robert had understood that very likely his patients were suffering from depression even after being cured of their cancer, because the cancer drug had stopped newborn neurons from being generated.
translation.zh: 那时，罗伯特理解到 他的病人们很有可能会 遭受抑郁的症状 即使在癌症治愈以后， 因为抗癌药物阻止了 身体新的神经元的生成。