a/an + (adj.) + snake
snake 是可数名词，单数形式前必须加冠词 a/an 或 the。
A small green snake slid across the path.
一条绿色的小蛇从路上滑过。
奸诈之人；背信弃义者；管道疏通器；穿线器；拉缆工具；斯内克河（美国西北部河流，哥伦比亚河支流）；贝塞尔曲线序列
a legless reptile with a long, thin body and a forked tongue
蛇亚目无腿爬行动物,身体细长,舌头分叉
Any of the suborder Serpentes of legless reptiles with long, thin bodies and fork-shaped tongues.
无肢、有鳞、细长的爬行动物；部分具有毒性
limbless scaly elongate reptile; some are venomous
为个人或社会利益而欺骗的人；奸诈之人
A person who acts deceitfully for personal or social gain; a treacherous person.
狡诈或背信弃义的人
a deceitful or treacherous person
疏通管道用的工具
A tool for unclogging plumbing.
哥伦比亚河的一条支流,发源于怀俄明州并向西流淌；于 1805 年被刘易斯与克拉克探险队发现
a tributary of the Columbia River that rises in Wyoming and flows westward; discovered in 1805 by the Lewis and Clark Expedition
辅助拉电缆的工具
A tool to aid cable pulling.
一系列贝塞尔曲线
A series of Bézier curves.
第七张莱诺曼牌
The seventh Lenormand card.
We saw a snake while hiking in the forest.
我们在森林里徒步时看到一条蛇。
用法提示：snake 在此为可数名词，指蛇这种爬行动物。
The snake moved quickly through the grass.
那条蛇在草丛里迅速移动。
用法提示：snake 作主语，表示蛇这一动物。
Some snakes are venomous, so you should keep your distance.
有些蛇是有毒的，所以你应该保持距离。
用法提示：复数 snakes 泛指蛇类。
snake 是可数名词，单数形式前必须加冠词 a/an 或 the。
A small green snake slid across the path.
一条绿色的小蛇从路上滑过。
泛指一整类动物时用复数 snakes，前面不加冠词。
Snakes are cold-blooded and cannot live in very cold places.
蛇是冷血动物，无法在极寒的地方生存。
表示所属关系时，用 's 所有格，如 the snake's tongue、the snake's bite。
The snake's skin is covered with shiny scales.
蛇的皮肤上覆着闪亮的鳞片。
grammar · medium
易错句子I saw snake in the garden yesterday.
正确表达I saw a snake in the garden yesterday.
英语可数名词单数前面必须有冠词。汉语没有冠词系统，说“我昨天在花园里看到蛇”时直接省略了冠词；snake 是可数名词，指未特指的一条蛇时，单数前要用不定冠词 a。
grammar · medium
易错句子There are three snake in the box.
正确表达There are three snakes in the box.
汉语名词没有单复数形态变化，数词“三”后面仍然用“蛇”原形；英语可数名词在大于一的数词后必须用复数形式，所以要用 snakes。
grammar · medium
易错句子I saw much snakes at the zoo.
正确表达I saw many snakes at the zoo.
many 修饰可数名词复数，much 修饰不可数名词。snake 是可数名词，复数 snakes 前表示“许多”只能用 many，不能用 much。
毒蛇
A venomous snake bit him on the ankle while he was hiking.
他徒步时，一条毒蛇咬了他的脚踝。
蛇咬伤
He was rushed to hospital after a snake bite.
他被蛇咬伤后，被紧急送往医院。
耍蛇人
The snake charmer played a flute while the cobra swayed.
耍蛇人吹着笛子，眼镜蛇随之摆动。
蛇毒
Scientists use snake venom to develop life-saving medicines.
科学家利用蛇毒研发救命药物。
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