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...a dolphin's dorsal fin.是什么意思？

...a dolphin's dorsal fin.

海豚的背鳍

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
The Philips deal also gives Sparc a foot in the door of a new market — consumer electronics.
与飞利浦公司的交易也使斯巴克得以进入一个新市场——消费类电子产品。
...his dogged insistence on their rights.
他对他们权利的坚决主张
...doctored wine.
掺了药的酒
It's one of the biggest buildings in this area, and it really dominates this whole place.
这是该地区最大的建筑物之一，雄踞在整个地区之上。
...a doddering old man making his will before he's too senile.
趁尚未老糊涂之前立下遗嘱的年迈老者
The newspaper contacted his grandmother to trace his present address, and later doorstepped him at his home.
报纸联系了他祖母，查到了他现在的住址后便前往登门采访。
The book is expected to dominate the best-seller lists...
这本书预计会占据畅销书排行榜的榜首。
I knocked at the front door, but there was no answer...
我敲了敲前门，没有人应。
He dodged amongst the seething crowds of men...
他在川流不息的人群中东躲西闪。
Women are no longer dominated by the men in their relationships...
在两性关系中女性不再受制于男性。
Attendance figures had been steadily dropping, creating a mood of doom and discouragement among theatre directors.
上座人数一直持续下降，使得戏剧导演产生悲观泄气的情绪。
His career has been dogged by bad luck.
他在事业上一直不走运。
...the doomsday scenario of civil war between the two factions.
两个派系之间的内战可能会带来世界末日般的灾难
Because it is carried by a dominant gene, an affected individual can expect about half of his or her children to inherit the illness.
因为它是由显性基因携带，所以感染者的孩子会有约50％的可能性遗传该疾病。