expansion box

例句：

1. 1. The engineer designed the expansion box to fit perfectly into the space.
   工程师设计了膨胀盒，完美地适应了空间。
2. 2. The expansion box is used to store and protect fragile items during transportation.
   膨胀盒用于运输过程中存储和保护易碎物品。
3. 3. The expansion box was a revolutionary tool for expanding our understanding of space.
   膨胀盒是扩展我们对太空理解的革新工具。