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dorsal fin是什么意思？

dorsal fin

脊鳍

相关词汇
dorsal fin

dorsal

adj. 背的， 脊的，背部的，背面的；

fin

n. 鱼鳍，鳍状物，（汽车、飞机、炸弹上的）尾翅，散热片；vt. 给…装上翅片，切除鳍；vi. 潜泳，（猛烈地）拍动（鳍）；
热门例句
He acknowledged publicly that he might have made a mistake.
他当众承认自己可能犯了个错误。
...the spiralling vortex airflow that slows the plane.
使飞机减速的螺旋形气流涡旋
You just go on ahead. I'll come by later...
你只管先往前走。我随后就来。
He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打儿子的,是恨恶他;疼爱儿子的, 趁早管教.
For further information, please contact 414 3925, extension 2253.
详情请致电414 3925,转分机2253。
Baroness Thatcher's claims seem credible to many.
撒切尔女男爵的主张在很多人看来是可信的。
He sat there while I made the case for his dismissal...
他坐在那儿，听我陈述解雇他的理由。
Nothing to be got without pains but poverty.
一份耕耘，一份收获。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索权当有支付义务的第一方不能支付时，可以向商业票据的背书人要求支付的权力。
相关例句
Well I’m glad that’s over and done with. I was so nervous.
我很高兴终于结束了，我刚才很紧张。
He donated to cancer research.
他捐款支持癌症的研究工作。
I was quite impressed by her dogged determination to succeed.
她想成功的坚定决心让我印象深刻。
Please do be quiet.
务请肃静。
He removed the dogmatism from politics; he erased the party line.
他根除了政治中的教条主义，消除了政党界限。
Ex-colonial countries began to challenge the cultural dominance of Europe.
摆脫了殖民统治的国家开始挑战欧洲的文化统治。
It’s going to take some doing to do the report on time, but we should manage it.
要按时完成报告有难度，不过我们会设法完成的。
Don’t leave him standing on the doorstep,ask him in!
不要让他站在门口的阶梯上,请他进来。
This case lacked documentary proof.
本案缺少书面证据。
Europe is divided into economic zones.
欧洲分成多个经济区。
Sports, and not learning, seem to dominate in the school.
似乎是运动而不是学习在那所学校占重要地位。
Property sales have been in the doldrums for some time.
房地产销售一段时间以来不大景气。
The British were formerly dominant in India.
英国人从前统治印度。
divest a man of his rank and honours
剥夺某人的官阶及勋衔