scaf

例句：

1. 1. The scaffolding was removed before the construction began.
   在施工开始之前，脚手架被拆除了。
2. 2.The scaffolding is essential for safety during construction.
   脚手架对于施工期间的安全至关重要。
3. 3. The scaffolding has been replaced with a new design.
   脚手架已经被一种新的设计所取代。