the join between A and B
join 作名词时指两物相接之处,between 后面接相接的两方。
You can hardly see the join between the two pieces of wood.
几乎看不出两块木头之间的接缝。
连接处;接合点;接缝
joins — plural of join
接头;接口;加入;参加;并集;连接(数据库操作);并(格论中的最小上界)
a place where two things are joined, or the act of joining; a junction
连接或结合的行为或状态;接合点或连接。
An act of joining or the state of being joined; a junction or joining.
连接处;接合方式
the shape or manner in which things come together and a connection is made
管道或线路的交叉点;互连。
An intersection of piping or wiring; an interconnect.
并集;包含两个或更多集合所有成员的集合
a set containing all and only the members of two or more given sets
两个或多个数据库表中数据的交集。
An intersection of data in two or more database tables.
加入某事物(如网络)的行为。
The act of joining something, such as a network.
最小上界,格中一对元素间的一种运算,用符号∨表示。
The lowest upper bound, an operation between pairs of elements in a lattice, denoted by the symbol ∨.
同时包含两个给定线性空间的最小线性空间。
The smallest linear space containing both of two given linear spaces.
The carpenter carefully sanded the join to make it smooth.
木匠仔细打磨了接合处使其光滑。
用法提示:这里的“join”是名词,表示两个部件连接的地方。
In set theory, the join of two sets is the set of all elements that belong to either set.
在集合论中,两个集合的并集是包含任一集合中所有元素的集合。
用法提示:这里的“join”是名词,表示数学中的并集。
The plumber applied sealant to the join between the two pipes.
水管工在两管之间的连接处涂了密封剂。
用法提示:这里的“join”是名词,指管道连接处。
join 作名词时指两物相接之处,between 后面接相接的两方。
You can hardly see the join between the two pieces of wood.
几乎看不出两块木头之间的接缝。
指管道、线路等的接口时,可用 a join in + 物体。
Water was leaking from a join in the pipe.
水从管子的一处接口漏了出来。
数学用语,join 表示并集,即同时包含两个集合所有元素的最小集合。
The join of the two sets contains all the members of both.
这两个集合的并集包含两者的全部元素。
较正式的通用词,可指道路、线路或物体的汇合处;强调“交汇点”,不强调结合的动作。
侧重两个部件固定相连的位置,常见于机械、管道或身体关节;比“junction”更具体。
专指沿边缘缝合或焊接形成的线状接缝,主要用于布料、金属等材料,不能用于抽象连接。
含义更抽象,可用于电路、网络或人际关系;若指具体接点,通常须说 connection point。
grammar · medium
易错句子There is join between the two pipes.
正确表达There is a join between the two pipes.
join 作名词表示“连接处”时是可数名词,单数前需要不定冠词 a;汉语没有冠词系统,容易漏掉冠词。
grammar · medium
易错句子One of the join in the pipe is loose.
正确表达One of the joins in the pipe is loose.
one of the 后面必须接复数名词,因此用 joins;汉语名词不随数量变化,容易漏掉复数 -s。
grammar · medium
易错句子The joins between the pipes is leaking.
正确表达The joins between the pipes are leaking.
主语是复数名词 joins,谓语动词要用 are;汉语没有主谓一致,容易误用 is。
与 join(连接/结合)相对,指分离的状态或行为。
与 join(连接/结合)相对,指连接被切断的状态。
与 join(连接/结合)相对,指整体被分成部分的行为或状态。
与 join(连接/结合)相对,指脱离或拆开的状态。
与 join(连接/结合)相对,指裂开或分裂的结果。
内连接(只返回两表中匹配行的连接)
An inner join returns only the rows that exist in both tables.
内连接只返回同时存在于两个表中的行。
左连接(返回左表全部行及右表匹配行的连接)
A left join gives you every row from the left table and only matching rows from the right table.
左连接返回左表的每一行以及右表中匹配的行。
右连接(返回右表全部行及左表匹配行的连接)
A right join is like a left join but keeps all rows from the right table.
右连接与左连接类似,但保留右表中的所有行。
全连接(返回两表中所有行的连接)
A full join returns all rows from both tables, filling in missing matches with nulls.
全连接返回两个表中的所有行,缺失的匹配项用空值填充。
交叉连接(两表所有行的笛卡尔积)
A cross join pairs each row in one table with every row in the other table.
交叉连接将一个表中的每一行与另一个表中的每一行进行配对。
连接条件(控制两表如何匹配的规则)
The join condition determines which rows are combined.
连接条件决定哪些行会被合并。
如果你不能打败他们,就加入他们。
A common English proverb advising that if you cannot defeat an opponent, it is wiser to join forces with them.
常见的英语谚语,意思是如果无法打败对手,不妨与对方合作。
加入或死亡。
A famous political cartoon by Benjamin Franklin (1754) urging the American colonies to unite against British rule; later used as a patriotic slogan.
本杰明·富兰克林1754年的著名政治漫画,呼吁北美殖民地联合起来对抗英国统治;后来成为爱国口号。
Choose the next layer that will help you use joins with more confidence.
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