Remove the needles and shake the flask to dislodge the solid from the bottom and to help to dissolve it.

拔去针头，摇动烧瓶，把固体从瓶底取出，而且把它溶解。

youdao

Remove the needles and shake the flask to dislodge the solid from the bottom and to help to dissolve it.

拔去针头，摇动烧瓶，把固体从瓶底取出，而且把它溶解。

youdao