Each may have just a single chance to impress a female. 只有一个机会来取得雌鸟的芳心

54. The capercaillie can also digest conifer needles
    北欧雷鸟也吃针叶林的针叶
55. but feeding is not it's priority at the moment.
    不过此时它还没有享用的优先权
56. Like gladiators, the males square up for a battle.
    如同角斗士,雄鸡们为战斗摆好了架势
57. Each may have just a single chance to impress a female.
    只有一个机会来取得雌鸟的芳心
58. Neither can afford a lapse in concentration.
    必须全神贯注,不能失败
59. The injured loser may not survive.
    受伤的雷鸟不会活下来
60. The inhabitants of this great wilderness
    这片广阔森林的居民们

来自《行星地球 第一季 第十集 Planet Earth S01E10 季节森林》第 57 行