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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
His wages have gone up...
他涨工资了。
There is already an element of compulsion in existing government schemes for the unemployed.
政府现行的失业方案已经有点强制的意味了。
...the medieval chroniclers.
中世纪编年史家
By any standards, the accomplishments of the past year are extraordinary.
不管以哪种标准来衡量，过去一年都成果斐然。
...the states of Mississippi and South Carolina.
密西西比州与南卡罗来纳州
...a pastry cutter.
面团分切机
For the first few months after Daniel died, I was in a state of clinical depression...
丹尼尔去世后的最初几个月里，我一直处于临床抑郁症的状态。
Defense planners predict an extended period of retrenchment.
国防规划人员预计开支紧缩期会延长。
America has enough firepower in the area to mount sustained air strikes.
美国在该地区拥有足够的火力发动持续的空中打击。
The thicker lava would have taken two weeks to solidify...
较厚的熔岩需要两周的时间才能凝固。