dolphins are + adjective
dolphins are + 形容词 表示'海豚是……的'，常用于描述物种特征。
Dolphins are intelligent.
海豚很聪明。
海豚
鲯鳅；海豚队队员；系船浮筒；系船柱；海豚纹章图案；法国王太子
A small toothed whale with a beak-like snout, known for its intelligence and friendliness toward humans.
A carnivorous cetacean with a beak-like snout, famed for their intelligence and occasional willingness to approach humans.
人工建造的半潜式海上结构,通常用于临时系泊、防止船舶漂移至浅水区或作为助航设施的基础。
A man-made semi submerged maritime structure, usually installed to provide a fixed structure for temporary mooring, to prevent ships from drifting to shallow water or to serve as base for navigational aids.
名为海豚队的运动队成员,如迈阿密海豚队及各院校的球队。
A member of an athletic team called the Dolphins, such as the Miami Dolphins and teams of various institutions of learning.
广泛分布于温暖海域(尤其是夏威夷)的细长大型食用和游戏鱼
large slender food and game fish widely distributed in warm seas (especially around Hawaii)
A fish, the mahi-mahi or dorado, Coryphaena hippurus, with a dorsal fin that runs the length of the body, also known for iridescent coloration.
各种小型齿鲸,具有喙状嘴,比海豚大
any of various small toothed whales with a beaklike snout; larger than porpoises
A depiction of a fish, with a broad indented fin, usually embowed.
The dauphin, eldest son of the kings of France.
A mass of iron or lead hung from the yardarm, in readiness to be dropped through the deck and the hull of an enemy's vessel to sink it.
一种由编织绳索制成的花环或带子。
A kind of wreath or strap of plaited cordage.
由锚固定的浮标或浮杆,上有环供船舶系缆。
A spar or buoy held by an anchor and furnished with a ring to which ships may fasten their cables.
码头或海滩上的系船柱。
A mooring post on a wharf or beach.
用于保护重型船只、桥梁或海岸结构免受大型漂浮物撞击的永久性护舷。
A permanent fender designed to protect a heavy boat, bridge, or coastal structure from the impact of large floating objects such as ice, floating logs, or vessels.
I saw a dolphin jumping out of the water.
我看到一只海豚跳出水面。
用法提示：这里使用单数名词 'dolphin'，表示一只海豚。
Dolphins are known for their intelligence and playful behavior.
海豚以聪明和 playful 行为著称。
用法提示：这里使用复数名词 'Dolphins'，指整个物种。
The dolphin swam gracefully alongside the boat.
那只海豚优雅地沿着船游动。
用法提示：这里使用定冠词加单数名词 'the dolphin'，特指某个特定海豚。
dolphins are + 形容词 表示'海豚是……的'，常用于描述物种特征。
Dolphins are intelligent.
海豚很聪明。
see dolphins 常接地点状语，表示在某处看到海豚。
We saw dolphins in the ocean.
我们在海洋里看到了海豚。
a pod of dolphins 表示'一群海豚'，pod是量词/集体名词。
A pod of dolphins swam by.
一群海豚游过。
与海豚相似但体型较小，吻部较短；在一些非正式场合可互换，但严格区分
grammar · medium
易错句子I saw dolphin at the aquarium.
正确表达I saw a dolphin at the aquarium.
“dolphin”是可数名词，单数形式前需要不定冠词“a”或“an”。中文无冠词，故易遗漏。
grammar · medium
易错句子There are three dolphin in the pool.
正确表达There are three dolphins in the pool.
数字大于1时，可数名词“dolphin”必须用复数形式“dolphins”。中文名词无单复数变化，故易忽略加-s。
海豚(dolphin)通常有长嘴和弯曲的背鳍，而鼠海豚(porpoise)有短嘴和三角形的背鳍。
宽吻海豚
Bottlenose dolphins are the most common species in dolphin shows.
宽吻海豚是海豚表演中最常见的物种。
海豚表演
The children were thrilled by the dolphin show at the aquarium.
孩子们对水族馆的海豚表演兴奋不已。
海豚训练师
The dolphin trainer taught the dolphin to jump through hoops.
海豚训练师教海豚钻圈。
海豚群
A pod of dolphins swam alongside the boat.
一群海豚在船边游动。
与海豚一起游泳
Swimming with dolphins is a popular tourist activity in coastal resorts.
与海豚一起游泳是沿海度假胜地的一项热门旅游活动。
海豚生活在海洋中，海洋是其典型栖息地。
海豚是海洋哺乳动物，与海洋环境密切相关。
海豚是哺乳动物，与鱼类不同。
海豚擅长游泳，游泳是其基本行为。
海豚通常成群活动，称为pod。
海豚一直相信它们比人类聪明得多——原因完全相同。
Dolphins are often portrayed as highly intelligent in science fiction.
海豚在科幻作品中常被描绘为非常聪明。
弗利珀，这只海豚，是世界上最聪明的动物。
Many children grew up watching the adventures of Flipper the dolphin.
许多孩子是看着海豚弗利珀的冒险故事长大的。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.