Entangled and weighed down, 汁液粘腻 越粘越重

222. But sometimes the pisonia trees are too successful.
     但有时腺果藤树的策略过于成功
223. If a fledgling, testing out its wings, drops to the ground,
     如果幼鸟在学习飞翔时跌落地面
224. it can get covered with the seeds.
     它身上会挂满这些种子
225. Entangled and weighed down,
     汁液粘腻 越粘越重
226. if it can't free itself,the youngster will starve.
     如果它摆脱不了 就会饿死
227. The Pisonia may have failed to disperse these seeds,
     这样腺果藤的种子无法传播
228. but it will soon have fertiliser for its roots.
     但种子扎根很快就有好肥料了

来自《行星地球 第二季 第一集 Planet Earth S02E01 岛屿》第 225 行