1
a lark
lark 作名词时指云雀或百灵鸟，是一种以鸣叫闻名的鸟。
A lark was singing high above the field.
一只云雀在田野上空高高地歌唱。
百灵鸟；云雀
larks — plural of lark
先理解核心含义，再看它在真实句子里的用法。
百灵鸟；云雀
a small brown bird known for its singing
A lark was singing high above the field.
一只云雀在田野上空高高地歌唱。
Any of various small, singing passerine birds of the family Alaudidae.
A frolic or romp, some fun.
Any of various similar-appearing birds, but usually ground-living, such as the meadowlark and titlark.
A prank.
Every morning we heard a lark singing high above the fields.
每天早晨我们都听到一只云雀在田野上空高声歌唱。
The children watched the larks rise from the grass and disappear into the sky.
孩子们看着云雀从草丛中飞起，消失在天空中。
A lark perched on the fence and filled the garden with its song.
一只云雀落在篱笆上，它的歌声充满了花园。
lark 作名词时指云雀或百灵鸟，是一种以鸣叫闻名的鸟。
A lark was singing high above the field.
一只云雀在田野上空高高地歌唱。
on a lark 表示“一时冲动/闹着玩”，常放在句首或句末。
On a lark, they decided to dye their hair blue.
他们一时兴起，决定把头发染成蓝色。
for a lark 表示“为了好玩、当作恶作剧”。
He submitted a fake essay to the contest for a lark.
他闹着玩，向比赛提交了一篇假文章。
Not this
I saw lark in the sky.
Use this
I saw a lark in the sky.
lark 表示“云雀”时是可数名词，单数形式不能单独使用，必须加冠词 a/an 或 the，或用复数 larks；所以此处要加 a。
Not this
He did it in a lark.
Use this
He did it on a lark.
表示“一时冲动、闹着玩”的固定搭配是 on a lark，介词必须用 on，不能用 in；in a lark 不是英语的习惯用法。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
非常快乐，像云雀一样快活
She was as happy as a lark after receiving the letter.
收到信后，她快活得像只云雀。
黎明即起，一早起床
He rises with the lark every day to go jogging.
他每天黎明即起去慢跑。
一时兴起，闹着玩
On a lark, we decided to drive to the beach at midnight.
我们一时兴起，决定半夜开车去海滩。
非常快活；兴高采烈
She was as happy as a lark when she heard the good news.
听到这个好消息时，她高兴得像只云雀。
一时兴起；闹着玩
We decided on a lark to drive to the coast.
我们一时兴起，决定开车去海边。
起得很早；黎明即起
He was up with the lark every day to tend the garden.
他每天天不亮就起来打理花园。
那是云雀，黎明的使者。
In Shakespeare's Romeo and Juliet, this line marks the moment when Romeo must leave Juliet at dawn; the lark symbolizes the coming morning.
在莎士比亚的《罗密欧与朱丽叶》中，这句台词标志着罗密欧必须在黎明时离开朱丽叶；云雀象征着即将到来的早晨。
听，听！云雀在天堂之门歌唱。
This is the opening of a song in Shakespeare's play Cymbeline, celebrating the morning song of the lark.
这是莎士比亚戏剧《辛白林》中一首歌的开头，赞美云雀的晨歌。
Use larks naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
云雀（lark）在云端拉长（lark≈拉克）歌声，早起的人才能听见。
语域：neutral 常见场景：观鸟、自然纪录片、文学描写 此处为名词‘云雀/百灵鸟’义项，语气中性，通常用于自然观察、鸟类介绍或文学描写；在一般口语中提及具体鸟类时也会自然使用。
这些词都与 lark 押韵，读音均为 /ɑːk/（非卷舌音）。注意不要被拼写误导：lack (/læk/)、lake (/leɪk/)、lock (/lɒk/) 的元音不同，不押韵。
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.