That is to say, from eggs to larvae to adult butterflies, we spend our whole lives in the valley, and we have virtually no natural predators. The valley is extremely conducive for us Fabricius butterflies to flourish.
也就是說，我們從卵、幼蟲到成蟲，終其一生都在谷內，又幾乎沒有天敵，非常適合黃蝶族群大量生長。