及物动词
不及物动词
名词
1. 鳍
A fish's fins are the flat objects which stick out of its body and help it to swim and keep its balance.
2. 鳍状物;(飞机等的)垂直安定面;(火箭、炸弹等的)尾翼
A fin on something such as an aeroplane, rocket, or bomb is a flat part which sticks out and which is intended to help control its movement.
1. organ of locomotion and balance in fishes and some other aquatic animals
2. a stabilizer on a ship that resembles the fin of a fish
3. a shoe for swimming
the paddle-like front is an aid in swimming (especially underwater)
Synonym: flipper
4. one of a set of parallel slats in a door or window to admit air and reject rain
Synonym: louverlouvre
5. one of a pair of decorations projecting above the rear fenders of an automobile
Synonym: tail fintailfin
6. the cardinal number that is the sum of four and one
Synonym: five5VcinquequintquintetfivesomequintupletpentadPhoebeLittle Phoebe