Of course, no one can prove that any of these markets were bubbles.

当然，没人能证明上述任何一个市场是泡沫。

youdao

There must be no air bubbles rising in the water bath.

水槽中不可有上升的气泡。

youdao

There must be no air bubbles rising in the water bath.

水槽中不可有上升的气泡。

youdao