translation.en: Because, if the first neurons in the chain are activated, through their synapses they send messages to the second neurons, which are activated, and so on down the line, like a chain of falling dominoes.
translation.zh: 因为，如果链条中第一批神经元被激活 它们会通过神经突触向第二批被激活的神经元发出信息 以此类推，一直往下 就像是一路倒下的多米诺骨牌