Level 6 · word 17,060 of 20,000

flipper

/ˈflɪpər/ American
  • n. 鳍状肢, 脚蹼
Definition
  • n. a broad flat limb of a sea animal, or a rubber fin for diving
Example
The dolphin used its flipper to push through the ocean water.
海豚用它的鳍在海水中划动前进。