As their chicks grow, 随着雏鸟一天天长大

214. She knows something's not quite right,
     她知道事情有点不太对劲
215. but her drive to incubate is strong.
     但她孵化的意愿很强烈
216. The noddies too have a problem.
     黑燕鸥也遇上了麻烦
217. As their chicks grow,
     随着雏鸟一天天长大
218. so the pisonia trees develop seeds that are sticky
     腺果藤树长出了黏黏的
219. and equipped with hooks.
     带有倒钩的种子
220. By the time the young noddies leave,
     新一代黑燕鸥离巢的时候

来自《行星地球 第二季 第一集 Planet Earth S02E01 岛屿》第 217 行