n.细颈瓶；烧瓶；小水瓶

A balloon is mysteriously "sucked" into a flask. 一个气球神秘地被吸进了一个细颈瓶。

The graduation is marked on the side of the flask. 烧瓶侧面有刻度标志。

A flask, conjured from thin air, was thrust into his shaking hand by Hermione. 赫敏将一个凭空变出来的烧瓶塞在了他颤抖着的手里。