英 [saɪnd] 美 [saɪnd]
adj. 有符号的；已签字的；有正负之分的
v. 署名；写下；预示；示意（sign 的过去分词）
sign /saɪn/ CET4 TEM4 [ signing signed signs ]
可数名词 A sign is a mark or shape that always has a particular meaning, for example, in mathematics or music. 符号
Equations are generally written with an equal sign.
等式通常用等号来写。
可数名词 A sign is a movement of your arms, hands, or head which is intended to have a particular meaning. 姿势; 手势
They gave Lavalle the thumbs-up sign.
他们给拉瓦列做了一个竖起大拇指的手势。
及物动词 If you sign, you communicate with someone using sign language. If a programme or performance is signed, someone uses sign language so that deaf people can understand it. 打手势; (节目或表演) 配手势语
All programmes will be either "signed" or subtitled.
所有的节目都配有手势语或者字幕。
可数名词 A sign is a piece of wood, metal, or plastic with words or pictures on it. Signs give you information about something, or give you a warning or an instruction. 指示牌
...a sign saying that the motorway was closed because of snow.
…一个写着公路因大雪封闭的指示牌。
有变体名词 If there is a sign of something, there is something which shows that it exists or is happening. 迹象; 征兆
They are prepared to hand back a hundred prisoners of war a day as a sign of good will.
作为一种友好的表示，他们准备一天遣返100名战犯。
His face and movements rarely betrayed a sign of nerves.
他的表情和行为很少流露出紧张的迹象。
及物动词 When you sign a document, you write your name on it, usually at the end or in a special space. You do this to indicate that you have written the document, that you agree with what is written, or that you were present as a witness. 在…上签名; 签署
World leaders are expected to sign a treaty pledging to increase environmental protection.
人们期望世界领导人们能签署一份承诺加强环境保护的条约。
及物动词/不及物动词 If an organization signs someone or if someone signs for an organization, they sign a contract agreeing to work for that organization for a specified period of time. 签约雇用; 签约受雇
The Minnesota Vikings signed Herschel Walker from the Dallas Cowboys.
明尼苏达维京人队签约雇用了达拉斯牛仔队的赫舍尔·沃克。
可数名词 In astrology, a sign or a sign of the zodiac is one of the twelve areas into which the heavens are divided. 星座
The new moon takes place in your opposite sign of Libra on the 15th.
15日新月会出现在天秤座的对面。
→see alsosigning
习语 If you say that there is no sign of someone, you mean that they have not yet arrived, although you are expecting them to come. 不见某人的踪影
The train was on time, but there was no sign of my Finnish friend.
火车准时到达了，但还没有见到我芬兰朋友的踪影。
having a handwritten signature
a signed letter
used of the language of the deaf
同义词： gestural / sign(a) / sign-language(a)
已签字
带符号的
有符号的
只有用在那里的成功才能够证明埃因霍温的签约(Signed)是否正确 ，
投资方(Investors)表示：宝荣浐灞俱乐部与朱广沪签订(Signed)的条约为“3+2”，即三年确定执教合同结束后，俱乐部有权根据朱广沪的表现决定(Decide)是否再续约两年。西甲足球。
...储符号，所以最高为的1当作数的一部分 回复: 负数在计算机内是以补码的形式存储的，无符号位（unsigned）的和有符号的（signed）的首位储存有差异，unsigned无符号位，而signed首位为符号位……
... Ssplitorstockdivided拆股或股息 Ssigned已签字 ssecond;shilling秒；第二；先令 ...
You haven't signed the letter.
这封信您还没有署名。
The treaty was signed on 24 March.
条约是3月24日签订的。
He signed himself 'Jimmy'.
他署名“吉米”。
The current version of the law, signed by George W.Bush eight years ago,is known as the No Child Left Behind Act.
VOA : special.2010.03.18
I think your word "vocation" is the key, certain kind of calling, And I signed the divine wisdom actually.
我认为你所说的“职业“是关键，这是一种召唤，我做的是宣扬神的智慧。
人性课程节选 : 普林斯顿公开课
I signed those fiches, those formulas and if I hadn't been there to save the hundreds then they all would've died."
我签了那些文件,那些表格,要不是我救那几百人,他们就都死了"
1871年后的法国课程节选 : 耶鲁公开课
He discussed the seven hundred eighty-seven billion dollars in spending and tax cuts that he signed into law last week.
VOA : special.2009.02.27
While in high school, Roberto signed a contract to play baseball for the Santurce Crabbers in the Puerto Rican winter league.
VOA : special.2010.04.11
She is only one of the benefactors who signed on to help Baan Borang.
Her son says that lawyers and witnesses were in the room when she signed each.
Neither Google nor Microsoft will say how many people have signed up to their sites.
在默认情况下声明的整型变量都是有符号的类型（char有点特别），如果需声明无符号类型的话就需要在类型前加上unsigned。无符号版本和有符号版本的区别就是无符号类型能保存2倍于有符号类型的正整数数据，如16位系统中一个int能存储的数据的范围为-32768~32767，而unsigned能存储的数据范围则是0~65535。由于在计算机中，整数是以补码形式存放的。根据最高位的不同，如果是1,有符号数的话就是负数；如果是无符号数,则都解释为正数。