a(n) [noun]
cormorant 是可数名词，单数形式前需加冠词。
A cormorant was drying its wings on the rocks.
一只鸬鹚正在岩石上晾晒翅膀。
鸬鹚
cormorants — plural of cormorant
大型贪食的深色长颈海鸟,具有可扩张的鱼囊；在亚洲用于捕鱼；贪婪的人
a large dark seabird with a long neck and a pouch in its throat for holding fish, used in Asia for fishing
Any of various medium-large black seabirds of the family Phalacrocoracidae which dive into water for fish and other aquatic animals, found throughout the world except for islands in the centre of the Pacific Ocean; specifically, the great cormorant (Phalacrocorax carbo).
大型贪食的深色长颈海鸟,具有可扩张的鱼囊；在亚洲用于捕鱼
large voracious dark-colored long-necked seabird with a distensible pouch for holding fish; used in Asia to catch fish
Along the coast, we watched a cormorant spread its wings to dry after diving for fish.
在岸边，我们看到一只鸬鹚潜水捕鱼后张开翅膀晾干。
用法提示：这里用名词单数“cormorant”表示鸬鹚这种水鸟。
A group of cormorants rested on the rocks near the harbor.
一群鸬鹚歇在港口附近的岩石上。
用法提示：“cormorants”是“cormorant”的复数形式，指多只鸬鹚。
The fisherman trained his cormorant to catch fish for him.
渔民训练他的鸬鹚为他捕鱼。
用法提示：名词“cormorant”在这里作“trained”的宾语，指经过训练的鸬鹚。
cormorant 是可数名词，单数形式前需加冠词。
A cormorant was drying its wings on the rocks.
一只鸬鹚正在岩石上晾晒翅膀。
复数形式可指一类鸟。
Cormorants dive underwater to catch fish.
鸬鹚潜入水下捕鱼。
A flock of cormorants rested on the pier.
一群鸬鹚停在码头上。
shag 通常特指欧洲长鼻鸬鹚，是鸬鹚的一种，并非完全同义；日常英语中较少单独使用，且另有‘粗毛’‘性交’等常见含义，需根据语境判断。
grammar · medium
易错句子I saw cormorant near the river.
正确表达I saw a cormorant near the river.
cormorant 是单数可数名词，表达‘一只鸬鹚’时必须加冠词 a；中文没有冠词，所以容易漏掉，加 a 后句子才符合英语语法。
grammar · medium
易错句子There has a cormorant on the rock.
正确表达There is a cormorant on the rock.
表示‘（某处）有某物’时，英语用 there is/are，而不用 there has/have；中文的‘有’直译成 has 是常见中文迁移错误，改用 there is 才正确。
中文常把鸬鹚也叫“鱼鹰”，但真正名为“鱼鹰”的鸟是鹗（osprey）。鸬鹚是鸬鹚科的潜水水鸟，嘴细长带钩；鹗是鹰科猛禽，用利爪俯冲抓鱼，嘴短而弯。
二者都是捕鱼水鸟且有喉囊，但鹈鹕喉囊极大，嘴下悬垂，用来兜水捞鱼；鸬鹚喉囊小，嘴直而尖，常潜水追鱼。中文名称“鹈鹕”与“鸬鹚”完全不同，不要混淆。
普通鸬鹚（一种大型鸬鹚）
The great cormorant is often seen drying its wings on rocks.
人们常看到普通鸬鹚在岩石上晾晒翅膀。
鸬鹚捕鱼（利用鸬鹚捕鱼的传统方式）
Cormorant fishing has been practiced in China for centuries.
鸬鹚捕鱼在中国已延续数百年。
鸬鹚群（栖息地）
A large cormorant colony nests on the coastal cliffs.
一大群鸬鹚在海岸悬崖上筑巢。
鸬鹚种群
The cormorant population has grown rapidly near the lake.
湖边的鸬鹚种群数量迅速增长。
鸬鹚巢
We spotted a cormorant nest high in the treetops.
我们看到树上有个高高的鸬鹚巢。
但鸬鹚和麻鳽必占有它；猫头鹰和乌鸦也要住在其中。他必将空虚的准绳和混沌的线铊拉在其上。
This line comes from the King James Bible (Isaiah 34:11). It pictures a ruined land where wild birds like the cormorant and the bittern live, symbolizing desolation and divine judgment.
这句话出自《英王钦定版圣经》（以赛亚书34:11）。它描绘一片荒废之地，住着鸬鹚、麻鳽等野鸟，象征荒凉与神圣的审判。
Dictionary facts from ECDICT, WIKTIONARY.