原文:Some of us have a tough time holding on to branches.攀在树上不容易
hold on:1.继续;坚持;保持
The speaker held on for a full hour.
演讲的人讲了整整一个小时。
How much longer do you think we can hold on?
你认为我们还能坚持多久?
2.不挂断电话

原文:Usually we come out at night so birds don't carry us off.我们晚上出来免得被鸟叼走
carry off:1.使丧命
Cholera carried him off that year.
那年霍乱使他丧命。
2.获得
John carried off all the prizes in the contest.
约翰获得了比赛的全部奖品。