她潜入水中，几秒钟後像软木塞一样又浮了上来。
She dived below the surface, then bobbed up like a cork again a few seconds later.
软木塞用软木做成的东西，尤指瓶塞
Something made of cork, especially a bottle stopper.
塞子；栓子用来填紧洞孔的物体，如软木塞或一团布；塞子
An object, such as a cork or a wad of cloth, used to fill a hole tightly; a stopper.
