unstable creep

例句：

1. 1. The earthquake caused a lot of damage to the buildings, making them unstable creep.
   地震导致建筑物损坏严重，变得不稳定。
2. 2. The old tree was leaning precariously, and it was hard for us to keep up with its unstable creep.
   那棵老树摇摇欲坠，我们很难跟上它不稳定的爬行。
3. 3. The baby elephant was struggling to walk, but it was still able to make unstable creeps in the grass.
   小象努力地走路，但仍然能在草地上做出不稳定的爬行动作。