A frog is a vertebrate even though it has no fur.
青蛙虽然没有皮毛，却是一种脊椎动物。
Take an expression with you
This preview contains only public teaching examples or a lesson summary. It excludes your responses, notes, learning history and identity, and is not sent automatically.
Content is internally reviewed; independent language review is pending.
Read the complete entry or lesson — no registration needed · Source and version
You can also select the text and copy it manually. Links printed in a PNG are not clickable; include the text link when sending.