单词：Ambulacrum

中文含义： （解剖学）管足；（动物学）管足区

英语词性： Noun

美式发音：  [am-byuh-luh-krum]

同义词： tube feet, podia, pedal siphons

易混淆单词： ambulatory, ambulation, ambulante, ambulancer

双语例句：

1. The sea urchin uses its ambulacra to move around and to catch food.

         海胆使用其管足来移动和捕食。

2. The crown of thorns starfish has long and sharp spines on its ambulacra.

         棘冠海星在其管足上有长且尖锐的刺。

3. The ambulacra of a sea cucumber help it move across the ocean floor.

         海参的管足帮助它在海底上移动。

4. The anatomy of the ambulacrum is different in different species of echinoderms.

         不同种类的棘皮动物的管足解剖结构有所不同。