ambulacrum 的定义
plural am·bu·lac·ra [am-byuh-lak-ruh, -ley-kruh]. /ˌæm byəˈlæk rə, -ˈleɪ krə/.
- one of the radial areas in an echinoderm, as the sea urchin, bearing the tube feet by which the creature moves.
📖毕业后词汇枕边人枕木枕戈待旦枕头
plural am·bu·lac·ra [am-byuh-lak-ruh, -ley-kruh]. /ˌæm byəˈlæk rə, -ˈleɪ krə/.