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as + adjective + as a snail
用于形容人或过程非常缓慢。
He is as slow as a snail.
他慢得像蜗牛。
蜗牛
先理解核心含义，再看它在真实句子里的用法。
蜗牛
a small gastropod mollusk with a spiral shell, living in water or on land; also used figuratively for a slow person
He is as slow as a snail.
他慢得像蜗牛。
也可指行动迟缓或脑筋迟钝的人
属于腹足纲的动物,具有螺旋壳
Any of very many animals (either hermaphroditic or nonhermaphroditic), of the class Gastropoda, having a coiled shell.
淡水、海洋或陆生的腹足纲软体动物,通常具有外部螺旋形外壳
freshwater or marine or terrestrial gastropod mollusk usually having an external enclosing spiral shell
螺旋凸轮或螺旋曲线金属片,用于传递运动或改变另一部分的位置,如打击钟的锤尾
A spiral cam, or a flat piece of metal of spirally curved outline, used for giving motion to, or changing the position of, another part, as the hammer tail of a striking clock.
可食用的陆生蜗牛,通常连壳配以融化的黄油和大蒜酱食用
edible terrestrial snail usually served in the shell with a sauce of melted butter and garlic
After the rain, a snail slowly crawled across the pavement.
雨后，一只蜗牛慢慢地爬过人行道。
He walks as slowly as a snail, especially when he's tired.
他走路慢得像蜗牛，特别是他累的时候。
The construction work is progressing at a snail's pace due to bad weather.
由于天气恶劣，施工进展像蜗牛一样缓慢。
用于形容人或过程非常缓慢。
He is as slow as a snail.
他慢得像蜗牛。
常用于描述进展或移动速度极慢。
The project is moving at a snail's pace.
项目进展缓慢如蜗牛。
不及物动词短语，表示缓慢移动。
Traffic is snailing along the highway.
车流在高速公路上缓慢爬行。
及物用法，后接地点或障碍，强调费力缓慢地移动。
He snailed his way through the crowd.
他缓慢地穿过人群。
Not this
I saw many snail in the garden.
Use this
I saw many snails in the garden.
snail是可数名词，表示具体蜗牛时复数形式应为snails。中文中无明显的复数标记，学习者常忽略加-s。
Not this
He is very snail in doing homework.
Use this
He is very slow in doing homework.
snail是名词或动词，不能直接用作形容词。英语中表示“缓慢”应用形容词slow，而中文可能直译为“他很蜗牛”。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
普通邮件（相对于电子邮件）
I still prefer snail mail for personal letters.
我仍然喜欢用普通邮件写私人信件。
蜗牛般的速度，极其缓慢
The project is moving at a snail's pace.
这个项目进展极其缓慢。
蜗牛壳
The child picked up an empty snail shell on the beach.
那个孩子在沙滩上捡起一个空蜗牛壳。
蜗牛爬过留下的黏液痕迹
A shiny snail trail led across the pavement.
一条闪亮的蜗牛黏液痕迹穿过人行道。
像蜗牛的，缓慢的
The traffic was snail-like during rush hour.
高峰时段交通像蜗牛一样缓慢。
极慢的速度
The project is progressing at a snail's pace.
这个项目进展极其缓慢。
普通邮件（相对于电子邮件）
I prefer email over snail mail for its speed.
比起普通邮件，我更喜欢电子邮件，因为它速度快。
我要一步一步往上爬，等待阳光静静看着它的脸。
From the song 'Snail' by Jay Chou.
出自周杰伦的歌曲《蜗牛》。
蜗牛，蜗牛，伸出你的触角，我给你面包和大麦粒。
A traditional English nursery rhyme.
传统英语童谣。
发长 /eɪ/ 音 (如 rain, wait)
Use snail naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
蜗牛慢得像“死赖”着不动，记住snail发音像“死赖”。
语域：mixed 常见场景：zoology、metaphor for slowness、slow movement、idiom: snail mail 该词既可用作名词（蜗牛、行动迟缓的人），也可用作动词（缓慢移动），具体词性取决于语境。通常用于描述速度慢或动物，如'Snail mail'是常见固定搭配。
及物用法较少见，常见为不及物动词表示缓慢移动。
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.