This might be his only chance to shine. 这也许是他唯一一次闪耀的机会

328. But for the female to see him at his best,
     但为了向雌鸟展示他的最佳状态
329. he needs her to perch directly above his stage,
     他需要她落座于舞台的正上方
330. under the light.
     在那束阳光下
331. This might be his only chance to shine.
     这也许是他唯一一次闪耀的机会
332. Now, when she's looking directly down on him,
     现在 当她垂直俯视他的时候
333. he reveals a display for her eyes only.
     他只为她的目光而表演
334. In the gloom of the forest floor,
     在这森林地表的阴暗处

来自《行星地球 第二季 第三集 Planet Earth S02E03 丛林》第 331 行