梯子可能需要橡胶底座，而梯子顶部可能需要固定，以便形成牢固结构，利于您的攀登。
The ladder may need rubber feet and the top of the ladder may need to be tied and secured to the structure you are climbing.
梯子可能需要橡胶底座，而梯子顶部可能需要固定，以便形成牢固结构，利于您的攀登。
The ladder may need rubber feet and the top of the ladder may need to be tied and secured to the structure you are climbing.
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