flask-shaped造句

It is a multicultural flask - shaped structure made up of a narrow neck and a swollen base ( venter ) that contains the female gamete
颈卵器状似长颈烧瓶，由一条细长的颈部和膨大的腹部（内含雌性配子）组成。
The hymenium may be directly exposed to the air , as in the gills of the mushroom ( a basidiomycete ) or may open into a flask - shaped cavity , as in the perithecia of certain ascomycetes
子实层可能直接暴露于空气，像蘑菇（担子菌）的菌褶，也可能似瓶状开口，如某些子囊菌的子囊壳。
It's difficult to find flask-shaped in a sentence. 用flask-shaped造句挺难的