The ribs, extending far to the rear, are well arched but not barrel shaped.

肋骨，向后扩展，扩张良好但不呈桶状。

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The roving Phronima sedentaria, a small crustacean, inhabits the hollowed-out bodies of dead barrel-shaped organisms called salps.

这个游动的小型甲壳纲动物名叫Phronima sedentaria，它们居住在樽海鞘的“桶状”尸体空壳中。

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In 1926, the Cooperage Company of Chicago (pickle manufacturer amongst other things) built this two-story barrel-shaped cottage for their head pickle AD illustrator, William Donahey.

1926年，芝加哥箍桶公司(以及腌菜等生产商)为他们的广告插图画家William Donahey建造了这个2层木桶式小屋。

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The bottlenose dolphins were moving in several groups of 15 to 20, their dorsal fins and barrel shaped torsos flashing in the sun as they came up for air.

NPR: Dolphins Dodge Danger in the Bosphorus Strait

To overcome all this, LeRoy Olson, an engineer at the University of Washington, devised a barrel-shaped structure of metal rings.

ECONOMIST: 20,000 leagues under the sea

Sitting on a shelf above the bar are barrel-shaped urns of the drink in an array of colours, like sweets in a candy shop.

BBC: The return of Mexico��s national nectar