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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。
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。
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。
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
He swore never to divulge the secret.
他立誓决不泄露秘密。
What are these shoes doing on my desk?
这些鞋怎么在我的桌子上？
He was still doggedly pursuing his studies.
他仍然顽强地进行着自己的研究。
I promised to repair the doorknob,but I had never got around to it.
我答应要修门把,可我抽不出时间修。
They used to donate large sum of money to the Red Cross every year.
他们过去每年都向红十字会捐献大笔的钱。
I heard the doorbell ring, and went to see who was there.
我听见门铃响，就去看谁来了。
diving for pearls
潜水采珠
I do think so.
我的确是这样想的。
The report on our economic situation is full of doom and gloom.
这份关于我们经济状况的报告充满了令人绝望和沮丧的调子。
Golf is my father's favourite diversion.
高尔夫球是我父亲最喜欢的娱乐。
Will this spanner do you?
这个扳手你用着行吗?
We did the journey in six hours.
我们在六小时之内走完了这段旅程。
The ship docked.
船靠码头了。
The exhibition is designed to reflect the diversity of the nation and its regions.
这次展览的本意就是要反映这个国家民族和地域的多样性。