a sign of sth
表示某事存在或将要发生的迹象，后面直接接名词或名词短语。
Dark clouds are often a sign of rain.
乌云常常是下雨的迹象。
招牌；标牌；告示牌；符号；记号；手势；示意动作；星座；黄道十二宫；正负号
A visible fact or perceptible indication that something exists or may happen.
显示某事存在或可能发生的明显事实
A visible fact that shows that something exists or may happen.
不立即显现的事物的可感知指示(如某事发生的可见线索)
a perceptible indication of something not immediately apparent (as a visible clue that something has happened)
用于代表某物的标记或符号
A mark or another symbol used to represent something.
公开展示的信息
a public display of a message
通常是平面的明显物体,带有简短的文字或图片信息
A clearly visible object, generally flat, bearing a short message in words or pictures.
编码信息的任何非语言动作或手势
any nonverbal action or gesture that encodes a message
奇迹；神迹；奇观
A wonder; miracle; prodigy.
星座
An astrological sign.
正负极性,用+或-符号表示
Positive or negative polarity, as denoted by the + or - sign.
用于交流的特定手势或动作,尤其是手语中的语言单位,相当于口语中的词
A specific gesture or motion used to communicate by those with speaking or hearing difficulties; now specifically, a linguistic unit in sign language equivalent to word in spoken languages.
手语总体
Sign language in general.
语义单位,即传达意义或信息的对象(如书面词语)；(语言学、符号学)由能指和所指构成的单位。
A semantic unit, something that conveys meaning or information (e.g. a word of written language); (linguistics, semiotics) a unit consisting of a signifier and a signified concept. (See sign (semiotics).)
旗帜或军旗上的军事徽章。
A military emblem carried on a banner or standard.
Dark clouds are often a sign that a storm is coming.
乌云常常是暴风雨即将来临的迹象。
用法提示：此处 sign 为名词，意为“迹象”，后接 that 从句说明征兆。
AI contextual example
She saw no signs of anyone having been in the house.
她没有看到任何有人进过这所房子的迹象。
用法提示：此处 signs 是 sign 的复数名词形式，表示“迹象”，后接 of 短语。
AI contextual example
His constant yawning was a clear sign that he was tired.
他不停地打哈欠，显然是他累了的一个明显迹象。
用法提示：此处 sign 为名词，表示“迹象”，前面的 clear 加强语气。
AI contextual example
表示某事存在或将要发生的迹象，后面直接接名词或名词短语。
Dark clouds are often a sign of rain.
乌云常常是下雨的迹象。
后面用 that 从句说明具体内容，口语中 that 常可省略。
Her silence was a sign that she was unhappy.
她的沉默是她不高兴的迹象。
指张贴或挂在某处的标牌、告示牌，用 on、in、at 等介词说明其位置。
There is a sign on the wall outside the office.
办公室外面的墙上有一块标牌。
grammar · medium
易错句子Please write your sign at the bottom of the form.
正确表达Please write your signature at the bottom of the form.
汉语“签名”既指签字的动作，也指写下的名字；英语中动作是动词 sign，而“写下的名字”这个名词是 signature。sign 作名词只表示迹象、招牌、符号等，不能用来指“签名”。
grammar · medium
易错句子Dark clouds are a sign for rain.
正确表达Dark clouds are a sign of rain.
表示“某事的迹象、征兆”时，sign 后面接介词 of，不接 for；for 只用于“给某人看的标牌、给某人做的示意”等含义。汉语“……的迹象”容易让人误用 for。
grammar · medium
易错句子There is no sign of that he has changed his mind.
正确表达There is no sign that he has changed his mind.
sign 后面接同位语从句时直接用 that，不加 of；of 后面只能接名词或动名词，如 no sign of change、no sign of changing。汉语“……的迹象”中的“的”容易让人误加 of。
路标
The road sign said the next town was 20 miles away.
路标显示下一个城镇在20英里外。
警告标志
The warning sign alerted drivers to the sharp curve ahead.
警告标志提醒司机前方有急弯。
手语
She learned sign language to communicate with her deaf friend.
她学习了手语以便与她失聪的朋友交流。
生命体征
The paramedic checked the patient's vital signs.
护理人员检查了病人的生命体征。
星座
What is your zodiac sign? I'm a Leo.
你是什么星座？我是狮子座。
时代的标志
The popularity of online meetings is a sign of the times.
在线会议的普及是时代的标志。
生命的迹象
The rescuers were relieved to see a sign of life from the collapsed building.
救援人员看到倒塌建筑中传来生命的迹象，松了一口气。
未来的征兆
The recent political unrest is a sign of things to come.
近期的政治动荡是未来之事的征兆。
标志，标志，到处都是标志
This song about 'signs' is a classic protest against rules and regulations.
这首关于‘标志’的歌曲是对规章制度经典的反抗。
这是时代的标志
Prince's song 'Sign o' the Times' reflects on social issues of the 1980s.
王子的歌曲《时代的标志》反映了20世纪80年代的社会问题。
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Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY, WORDNET.
时代的标志
The rise of remote work is a sign of the times.
远程工作的兴起是时代的标志。