a bird
用于泛指任何一只鸟。
I saw a bird in the tree.
我看到树上有一只鸟。
鸟
birds — plural of bird
禽肉；鸟肉；姑娘；妞；鸡；家禽；一种属于脊索动物门的温血动物,传统上归类为鸟纲,特征是有羽毛和通常能飞的翅膀,有喙状嘴,并产卵；温血、卵生、有羽毛且前肢为翼的脊椎动物
A warm-blooded, egg-laying animal of the class Aves, with feathers and wings (usually used for flight) and a beak.
一种属于脊索动物门的温血动物,传统上归类为鸟纲,特征是有羽毛和通常能飞的翅膀,有喙状嘴,并产卵
An animal of the clade (traditionally class) Aves in the phylum Chordata, characterized by being warm-blooded, having feathers and wings usually capable of flight, having a beaked mouth, and laying eggs.
温血、卵生、有羽毛且前肢为翼的脊椎动物
warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings
囚犯
A yardbird.
用作食物的禽肉
the flesh of a bird or fowl (wild or domestic) used as food
年轻女子的非正式称呼
informal terms for a (young) woman
A bird built a nest in the tree outside my window.
一只鸟在我窗外的树上筑了一个巢。
用法提示：bird作为名词，表示鸟类，在句中作主语。
We saw many colorful birds at the zoo yesterday.
我们昨天在动物园看到了许多色彩斑斓的鸟。
用法提示：birds是bird的复数形式，在句中作宾语。
The bird flew away when I approached it.
当我走近时，那只鸟飞走了。
用法提示：bird作为名词，在句中作主语，后接动词flew。
用于泛指任何一只鸟。
I saw a bird in the tree.
我看到树上有一只鸟。
特指上下文已知的鸟。
The bird flew away.
那只鸟飞走了。
所有格形式表示鸟的某物。
The bird's nest is in the tree.
鸟巢在树上。
与bird相比，fowl更常指家禽或狩猎鸟类，且常用于食用语境。
chick特指幼鸟或雏鸡，不能替代bird指代所有鸟类。
grammar · medium
易错句子I see bird in the sky.
正确表达I see a bird in the sky.
英语中可数名词单数前面一般要加冠词（a/an/the），汉语没有冠词概念，学习者容易遗漏。
grammar · medium
易错句子There is many birds in the tree.
正确表达There are many birds in the tree.
'there be' 句型中be动词的数应与后面主语一致，主语是复数birds，应用are。
鸟是鸟类，蝙蝠是哺乳动物；鸟有羽毛，蝙蝠有毛皮；鸟产蛋，蝙蝠胎生。
鸟鸣
The forest is filled with beautiful bird song in the morning.
早晨森林里充满了美妙的鸟鸣声。
喂鸟器
We hung a bird feeder in the garden to attract sparrows.
我们在花园里挂了一个喂鸟器来吸引麻雀。
观鸟
Bird watching is a popular hobby among nature enthusiasts.
观鸟是自然爱好者中流行的爱好。
禽流感
The government took measures to prevent the spread of bird flu.
政府采取措施防止禽流感传播。
早起的人
My grandfather is an early bird who wakes up at 5 a.m. every day.
我爷爷是个早起的人，每天凌晨5点起床。
双鸟在林不如一鸟在手
I think you should accept the offer; a bird in the hand is worth two in the bush.
我认为你应该接受这个提议；双鸟在林不如一鸟在手。
物以类聚，人以群分
They are all artists; birds of a feather flock together.
他们都是艺术家；物以类聚，人以群分。
一石二鸟
By studying on the bus, I can kill two birds with one stone.
在公交车上学我可以一举两得。
双鸟在林不如一鸟在手。
My dad always says, 'A bird in the hand is worth two in the bush', so I took the job offer.
我爸爸总是说‘双鸟在林不如一鸟在手’，所以我接受了那份工作。
鸟就是那个词。
Whenever someone mentions birds, my friend jokingly sings 'bird is the word'.
每当有人提到鸟，我朋友就开玩笑地唱‘bird is the word’。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY, WORDNET.