sand frame

例句：

1. 1. The sandboxframe is the main support for the sandcastle.
   沙箱框架是沙堡的主要支撑。
2. 2. The sandbox frame was made of wood and painted in bright colors.
   沙箱框架是由木头制成的，涂成了鲜艳的颜色。
3. 3. The children were playing with their sandbox frames when the rain started.
   孩子们在雨开始时还在用他们的沙箱框架玩耍。