noun [专属名词] 无脊椎动物；无骨气的人
Most invertebrate species disappeared during a wave of extinctions. 大多数无脊椎动物在一次（物种）灭绝浪潮中消失了。
adjective [原级] 无脊椎的；无骨气的
People aren't even required to seek permits to move plants or invertebrate animals around as long as they are not classified as pests. 人们甚至可以未经许可就对植物或无脊椎动物进行迁移，只要它们未被归类为有害动植物。
词根记忆: in(无) + vertebrate(脊椎的) → 无脊椎的 → 无脊椎动物
- 网友用 “Invertebrate” 造句精选
- ...invertebrate creatures. ...无脊椎动物。