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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；
例句
...a dolphin's dorsal fin.
海豚的背鳍

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）；
例句
The caudal fin crooked shape, on the leaf is specially developed.
尾鳍歪形, 上叶特别发达.
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
...British Coal's proposed pit closures...
英国煤炭公司建议关闭的矿井
Condensation will eventually cause the fabric of the building to rot away.
冷凝作用将最终使建筑结构腐朽掉。
...a forceful personality willing to go beyond the bounds of convention.
做事不拘常规的强硬个性
...a scouring pad.
百洁布
His abrasive manner has won him an unenviable notoriety...
他生硬粗暴的态度让他声名狼藉。
A minority of officers were prepared to bend the rules.
少数官员准备篡改规则。
What is your height and weight?...
你的身高和体重是多少？
I went for long, contemplative walks by the river...
我沿着河走了很久，默默沉思着。
The Government has insisted that confidence is needed before the economy can improve.
政府坚持认为只有坚定信心经济才会有起色。
Both women were unwelcoming, making little attempt to put Kathryn at her ease.
两个女人态度都不友好，没有怎么去安抚凯瑟琳。