3,087 个单词和短语 · 21 个主题

词汇

invertebrate

n.L3 拓展C1

无脊椎动物

英文释义 an animal without a backbone, including animals such as insects, snails, and jellyfish

在休闲、新排位或单人练习中遇到这个词并作答，就能解锁完整词条。