"tumble down" in Chinese (Simplified)
滚下来倒塌
Definition
突然、无法控制地从高处滚落，或（建筑物等）倒塌、崩塌。
Usage Notes (Chinese (Simplified))
多用于人或物体从斜坡、楼梯等地方滚落，也用于形容老旧建筑物倒塌（如“tumble down house”）。日常、形象的表达，不适用于小范围下落。
Examples
The old wall started to tumble down during the storm.
暴风雨中，旧墙开始**倒塌**。
The toy blocks tumbled down after I bumped the table.
我碰到桌子后，积木**滚了下来**。
A little boy tumbled down the hill but was not hurt.
一个小男孩**从山坡上滚了下来**，但没有受伤。
Paint chips started to tumble down from the ceiling as the house got older.
随着房子变旧，天花板的油漆片开始**剥落下来**。
When the shelf collapsed, all the books tumbled down in a big pile.
架子塌了以后，所有的书**摞成一堆滚了下来**。
Their dreams of winning the championship tumbled down after the final whistle blew.
终场哨响后，他们赢得冠军的梦想**破灭了**。