tumbling造句
If the foundations are flawed the house will come
tumbling down.
如果地基不牢，房子将会倒塌。
His eyes were fastened on the boiling,
tumbling waves.
他的眼睛凝视着汹涌的波涛.
A canny investor would need to predict when the dollar will once more start
tumbling.
精明的投资者需要预计到美元何时会再次大跌。