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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
What was he doing in Hyde Park at that time of the morning?
那么一大早他在海德公园干什么？
Mum wasn't very domesticated.
妈妈不是很喜欢干家务活。
Do not discontinue the treatment without consulting your doctor...
未经医嘱不要擅自中断治疗。
...when the long dormant volcano of Mount St Helens erupted in 1980...
当长期休眠的圣海伦斯火山在 1980 年爆发时
She looked through the door of the kitchen. Her daughter was at the stove.
她从厨房门口朝里看，发现女儿站在炉子旁。
We cannot allow dogmatism to stand in the way of progress.
我们不能允许教条主义阻碍进步。
Her husband was in the doghouse for leaving her to cope on her own.
她丈夫因让她独自应付把她惹毛了。
The space shuttle Atlantis is scheduled to dock with Russia's Mir space station...
亚特兰蒂斯号航天飞机计划与俄国和平号空间站对接。
If you always give in to others you will end up feeling like a doormat.
如果你总是屈服于人，你最终会觉得自己像一个受气包。
The latest refugees were housed in makeshift dormitories.
新来的难民被安置在临时的集体寝室里。
...doctored wine.
掺了药的酒
He is a doctor of philosophy.
他是哲学博士。
The truck left the loading dock with hoses still attached.
卡车驶离装货月台时塑料水龙带还连在上面。
My heart's a bit dodgy.
我的心脏有点儿小毛病。