| 单词 | 背甲 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔soft-shelled turtle〕Any of various freshwater turtles of the family Trionychidae, having a flat carapace covered with leathery skin and fleshy, elongated snout.软甲龟：一种属于鳖科的浅水龟，长有柔韧皮肤覆盖的、平坦的背甲和肉质的、细长的口鼻美国传统〔tergite〕A sclerite forming one of the constituents of a tergum.背甲：组成动物背甲几部分之一的一种硬壳美国传统〔turtleback〕Nautical An arched structure erected over the deck of a ship as protection from heavy seas.【航海】 龟背甲板：船的甲板上拱形的结构，可保护船在狂暴的海上航行美国传统〔whaleback〕A steamship with the bow and upper deck rounded so as to shed water.鲸背甲板船：一种蒸汽船，带有圆形的船头和上甲板以遮蔽雨水美国传统〔zoea〕A larval form of crabs and other decapod crustaceans, characterized by one or more spines on the carapace and rudimentary limbs on the abdomen and thorax. 蟹幼体：蟹和其它十足目甲壳纲动物的幼虫形式，其特点是在其背甲上有一个或多个脊椎，而且在腹部和胸部有一个或多个未发展完全的肢体美国传统 |
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