蹼足

鸭子的蹼足有助于游水

Ducks ' webbed feet help them to swim .

饲粮诱导蹼足类家禽肥肝形成的机理仍不清楚（Hermieretal.，2003），不同品种肥肝形成的差异也不清楚。

The mechanism of dietary-induced fatty liver of Palmipedes remains puzzling ( Hermier et al . , 2003 ) .

北海黑白色、短颈、蹼足的潜水鸟。

Black-and-white short-necked web-footed diving bird of northern seas .

通常是半水栖、蹼足并食虫的两栖动物，体表光滑潮湿，后肢长。

Insectivorous usually semiaquatic web-footed amphibian with smooth moist skin and long hind legs .

北美洲各种可食用蹼足龟，栖息在淡水或半盐水中。

Any of various edible North American web-footed turtles living in fresh or brackish water .

南美洲无尾的两栖类啮齿动物，体型大小如猪，部分蹼足；最大的现存啮齿动物。

Pig-sized tailless South American amphibious rodent with partly webbed feet ; largest living rodent .

北部海域的蹼足潜水海鸟；海雀；角嘴海雀；海雀科鸟；海鸠；等。

Web-footed diving seabirds of northern seas : auks ; puffins ; guillemots ; murres ; etc. .

寒冷的南部特别是南极地区的短腿并不能飞翔的鸟，蹼足、鳍状翼。

Short-legged flightless birds of cold southern esp. Antarctic regions having webbed feet and wings modified as flippers .

南半球大型蹼足的鸟，翅膀长而窄；以强有力的滑翔而闻名。

Large web-footed birds of the southern hemisphere having long narrow wings ; noted for powerful gliding flight .

池塘上有一群水鸟。海鸥科长翅、蹼足的水鸟。

There is a flock of waterfowls on the pond . long-winged web-footed aquatic bird of the gull family .

长腿、蹼足的黑白涉水鸟，有细长而向上弯曲的喙。身体上半部分向前或向后的弯曲。

Long-legged web-footed black-and-white shorebird with slender upward-curving bill . an inclination of the top half of the body forward and downward .

北半球有些原生的食鱼大型潜水鸟，蹼足长得很靠后；与？？有亲缘关系。

Large somewhat primitive fish-eating diving bird of the northern hemisphere having webbed feet placed far back ; related to the grebes .

鸭嘴兽是半水栖的卵生哺乳动物，全身长毛，鸭嘴蹼足，看起来像是其它动物组装而成的。

This semiaquatic , fur-covered , duck-billed , web-footed mammal that lays eggs seems to have been assembled from bits of other animals .

四趾蹼足的大型食鱼海鸟。鱼塘和鸡场多了，大家都吃得上鲜鱼、鲜蛋了。

Large fish-eating seabird with four-toed webbed feet . There are plenty of fish ponds and chicken farms , supplying everybody with fresh fish and eggs .

由两边对称的海洋掘足纲软体动物组成的一个小纲。南美洲无尾的两栖类啮齿动物，体型大小如猪，部分蹼足；最大的现存啮齿动物。

Small class of bilaterally symmetrical marine forms comprising the tooth shells . pig-sized tailless South American amphibious rodent with partly webbed feet ; largest living rodent .

大部分是白羽、蹼足的热带海鸟，常出没在远离陆地的地区。北半球有些原生的食鱼大型潜水鸟，蹼足长得很靠后；与？？有亲缘关系。

Mostly white web-footed tropical seabird often found far from land . large somewhat primitive fish-eating diving bird of the northern hemisphere having webbed feet placed far back ; related to the grebes .