translation.en: Here's what happened in two instances: We're comparing two strains of flies, each of them having about 100 light-addressable cells in their brains, shown here in green on the left and on the right.
translation.zh: 这里有两个不同案例中的情况。 我们在比较两个不同品种的果蝇， 它们的脑部分别有 大概一百个可光驱动的细胞， 在这里以绿色来显示。