沙盒

例句：

1. 1. The child was playing in the sandbox when a car drove by.
   当一辆汽车经过时，那个孩子正在沙箱里玩耍。
2. 2. The scientist kept his findings in a box labeled "secret."
   科学家将他的发现放在一个标有“秘密”的盒子里。
3. 3. The artist used a box to store her sketches and paints.
   艺术家用一个盒子来存放她的草图和颜料。