Another, bigger male has arrived. 另一只体型更为健壮的雄雪豹也来了

304. Snow leopards meet so infrequently
     雪豹们很少碰面
305. that there is uncertainty and tension.
     以致整个场面充斥着不确定和紧张的气氛
306. And it's about to get worse.
     然而更糟的还在后面
307. Another, bigger male has arrived.
     另一只体型更为健壮的雄雪豹也来了
308. The mother and cub are trapped between the rivals.
     雌雪豹和幼崽被困在两个竞争对手之间
309. The cub is now in danger.
     幼崽命在旦夕
310. Mother must act fast.
     母亲必须尽快行动

来自《行星地球 第二季 第二集 Planet Earth S02E02 山脉》第 307 行