1
a reptile
reptile 是可数名词，单数形式前通常加 a。
A reptile needs heat to regulate its body temperature.
爬行动物需要热量来调节体温。
爬行动物
reptiles — plural of reptile
先理解核心含义，再看它在真实句子里的用法。
爬行动物
reptile
A reptile needs heat to regulate its body temperature.
爬行动物需要热量来调节体温。
通常有鳞且卵生的冷血脊椎四足动物,属爬行纲(不包括鸟类),如蜥蜴、龟、蛇、鳄鱼、短吻鳄等。
A (typically scaly and egg-laying) cold-blooded vertebrate tetrapod animal, of the class Reptilia (excluding birds), such as a lizard, turtle, snake, crocodile, alligator, etc.
爬行纲冷血脊椎动物,包括陆龟、海龟、蛇、蜥蜴、短吻鳄、鳄鱼及已灭绝种类。
any cold-blooded vertebrate of the class Reptilia including tortoises, turtles, snakes, lizards, alligators, crocodiles, and extinct forms
爬行纲的任何成员,包括鸟类。
Any member of the class Reptilia, including birds.
The zoo has a special area where visitors can see reptiles such as snakes and lizards.
动物园里有一个专门的区域，游客可以在那里看到蛇和蜥蜴等爬行动物。
Scientists believe that many reptiles lived on Earth millions of years ago.
科学家认为，许多爬行动物在数百万年前生活在地球上。
My little brother keeps a pet reptile in a glass tank at home.
我弟弟在家里的玻璃缸里养了一只宠物爬行动物。
reptile 是可数名词，单数形式前通常加 a。
A reptile needs heat to regulate its body temperature.
爬行动物需要热量来调节体温。
用 such as 或 like 来具体列举爬行动物的种类。
Reptiles such as crocodiles and turtles have existed for millions of years.
鳄鱼和海龟等爬行动物已经存在了数百万年。
that 引导定语从句修饰 reptile，用于描述某类爬行动物。
A reptile that lives in a cold climate must hibernate.
生活在寒冷气候中的爬行动物必须冬眠。
Not this
I saw reptile in the zoo.
Use this
I saw a reptile in the zoo.
“reptile”是可数名词，单数形式前必须有冠词或限定词。汉语没有冠词，所以学习者容易漏掉“a”；加上“a”后句子才完整。
Not this
Reptile are cold-blooded.
Use this
Reptiles are cold-blooded.
泛指爬行动物这个类别时，可数名词常用复数形式。“reptile”是单数，不能单独作主语表示类别；改成复数“reptiles”才能表达“爬行动物（都）是冷血的”，同时也解决了主谓一致问题。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
爬行动物物种
This region is home to many reptile species.
该地区栖息着许多爬行动物物种。
爬行动物馆
The zoo's reptile house displays snakes and lizards from around the world.
动物园的爬行动物馆展出来自世界各地的蛇和蜥蜴。
海洋爬行动物
Marine reptiles such as sea turtles spend most of their lives in the ocean.
海龟等海洋爬行动物一生大部分时间都在海洋中度过。
爬行动物饲养员
As a reptile keeper, he checks the temperature in every enclosure daily.
作为爬行动物饲养员，他每天检查每个饲养箱的温度。
史前爬行动物
Dinosaurs are the best-known prehistoric reptiles.
恐龙是最著名的史前爬行动物。
爬行动物皮
Reptile skin is often covered in scales.
爬行动物的皮肤通常覆盖着鳞片。
爬虫脑，原始脑（指主管本能和生存反应的大脑区域）
When you panic, your reptile brain takes over and you stop thinking logically.
当你惊慌时，爬虫脑就会接管，你便不再理性思考。
冷血动物（常喻指冷酷无情的人）
The dictator was a cold-blooded reptile who showed no mercy to his enemies.
那个独裁者是个冷酷无情的冷血动物，对敌人毫不怜悯。
Use reptiles naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想 reptile 里的 tile（瓷砖），一只蜥蜴在瓷砖上爬行，即爬行动物。
语域：neutral 常见场景：biology class、zoo、everyday conversation 作名词表示爬行动物时，通常用于中性场合；在科普、教学或日常谈论动物时都较常见，正式与口语中均可使用。
The words above all end with the same /aɪl/ sound as the last syllable of reptile; tile also shares the exact spelling -tile. Style is a sound match but is spelled with -yle. Beware of lookalikes such as missile and hostile, which are often pronounced with a reduced final syllable (/səl/ or /təl/) in American English and therefore have a different sound.
Dictionary facts from ECDICT, WIKTIONARY.