This is a tray or shallow box where you put your homework each night until you are ready to do it.
每晚你把家庭作业放进这个文件盘或浅盒子里，准备好要做作业的时候再拿出来。
When the animal reached for the bait, the tray would be tripped, and the doors would fall down, trapping the animal unharmed inside the box.
当动物靠近诱饵时，就会触动托盘，带动笼门落下，把动物困在笼内，又不对它造成伤害。
The cube covers and card tray are a thin hard plastic similar to the plastic that box inserts are made of, so you might have to worry about splitting eventually.
立方体遮盖物和卡牌托盘是类似于包装盒嵌入板的薄塑料，因此你可能得担心稍不注意会撕裂它。
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