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fin of [noun]
The fin of a whale is impressive.
鲸鱼的鳍令人印象深刻。
鳍；鱼鳍
先理解核心含义，再看它在真实句子里的用法。
鳍；鱼鳍
A flat body part on a fish or sea mammal that it uses to swim and steer.
The fin of a whale is impressive.
鲸鱼的鳍令人印象深刻。
鱼的附肢之一,用于推进和转向
One of the appendages of a fish, used to propel itself and to manoeuvre/maneuver.
四加一的基数
the cardinal number that is the sum of four and one
鲸类或其他海洋动物的类似附肢
A similar appendage of a cetacean or other marine animal.
汽车后挡泥板上方的一对装饰物
one of a pair of decorations projecting above the rear fenders of an automobile
I only have a fin left after paying for lunch.
付完午餐后我只剩下一张五元纸币了。
He handed the cashier two fins for the coffee.
他递给收银员两张五元纸币买咖啡。
Can you break this fin into smaller bills?
你能把这张五元纸币换成小面额钞票吗？
The fin of a whale is impressive.
鲸鱼的鳍令人印象深刻。
非正式用语，指五元纸币。
I only have a fin.
我只有一张五元纸币。
背鳍
The dolphin's dorsal fin helps it steer.
海豚的背鳍帮助它转向。
尾鳍
The shark's tail fin propels it through the water.
鲨鱼的尾鳍推动它在水中前进。
鲨鱼鳍；鱼翅
Shark fin soup is considered a delicacy in some cultures.
鱼翅汤在某些文化中被视为美味。
脚蹼
Divers wear swim fins to move faster underwater.
潜水员戴脚蹼以便在水下移动更快。
腹鳍
The pelvic fin helps fish maintain balance.
腹鳍帮助鱼类保持平衡。
左边有鱼鳍，右边有鱼鳍，你是镇上唯一的女孩。
The shark's fin sliced through the water.
鲨鱼的背鳍划破了水面。
Use fin naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
fin 拼写里的 f 像鱼鳍展开的扇形，鱼靠它推进转向，记 fin=鳍。
语域：mixed 常见场景：biology、swimming、aviation、automotive fin 的语域随使用环境变化：日常多指鱼鳍或脚蹼，航空、汽车等领域则比较专业，总体偏中性。
All listed words rhyme with fin (/fɪn/): thin, pin, sin, win, grin, skin. Beware lookalikes such as fine /faɪn/, which has a different vowel sound and does not rhyme.
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.