脊索動物 jǐ suǒ dòng wù

DEFINITIONS

  1. chordata

CHARACTERS

脊 jǐ spine, backbone; ridge
索 suǒ
HSK 5
large rope, cable; rules, laws; to demand, to exact; to search, inquire; isolated
動 dòng move, happen; movement, action
物 wù
HSK 3
thing, substance, creature