Lesson learned. 吃一堑长一智

60. He's big and strong enough
    他的身体强壮有力
61. to form a bridge with his body
    可以搭成一座桥
62. so that she can climb to safety.
    让孩子爬回安全地带
63. Lesson learned.
    吃一堑长一智
64. But it's not just monkeys that live here, up in the treetops.
    但是在树顶生活的不仅仅是猴子
65. And, if you are small,
    如果体型足够小
66. finding the right tree can mean a home for life.
    找一棵合适的树相当于找到了一生的家

来自《行星地球 第二季 第三集 Planet Earth S02E03 丛林》第 63 行