And then he makes some comments about how,well, ; he could never pick cotton fast enough; he's just not able to do it as black men are.
于是他对采棉花进行了一些评价,他觉得自己永远没法采摘的够快;,没法像那些黑人一样迅速。
So, in order to have fast transmission you do that by transmitting electrical signals; that happens pretty quickly.
所以 为了使信号迅速地传播,细胞使用电信号,它速度非常快
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