v.(使)跌倒，摔倒，滚落，翻滚下来，倒塌，坍塌，(价格或数量)暴跌，骤降
tumble的现在分词

原形：tumble第三人称单数：tumbles过去式：tumbled过去分词：tumbled现在分词：tumbling

The price of housing is still tumbling.
放假仍在下跌。
Sea wave crash and tumble over the rocks.
海浪冲刷撞击着岩石。
He tumbled into poverty after resignation.
他辞职后陷入贫困。
She stumbled and almost tumbled down the stairs.
她绊了一下，差点从楼梯上摔下去。
The child tumbled over and over in the grass.
那孩子在草地上翻滚着玩。
The ball tumbled across the field as the players chased it.
球在场上滚动，球员们追赶着它。
The stock market tumbled after a series of bad economic news.
在一系列糟糕的经济新闻后，股市大幅下跌。
The tree branch broke, and the bird's nest tumbled to the ground.
树枝断了，鸟巢掉了下来。
He was so tired that he tumbled into bed without undressing.
他太累了，没脱衣服就倒在床上睡着了。
The child tumbled out of the swing, laughing all the while.
孩子从秋千上摔下来，一边笑着。
The box was too heavy and it tumbled from my arms.
这个箱子太重了，从我怀里掉下来了。
The stones tumbled down the mountainside in an avalanche.
石头随着雪崩滚下山坡。
The jigsaw puzzle pieces tumbled out of the box when I opened it.
当我打开拼图盒子时，里面的碎片都倒了出来。