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VERB
（人或交通工具）加入…之中，与…一道去，与…会合
If one person or vehicle joins another, they move or go to the same place, for example so that both of them can do something together.
例句
His wife and children moved to join him in their new home...
他的妻子和孩子们搬进了他们的新家，和他一起生活。
The two policemen were joined by another policeman also carrying a pistol.
另一名持枪警察和那两名警察会合了。
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VERB
加入（组织或机构）；成为…的一员；参加
If you join an organization, you become a member of it or start work as an employee of it.
例句
He joined the Army five years ago...
他5年前参军了。
She joined a dance company which took her around the world.
她加入了一个舞蹈团，到世界各地去演出。
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VERB
参与（活动）
If you join an activity that other people are doing, you take part in it or become involved with it.
例句
Telephone operators joined the strike and four million engineering workers are also planning action...
电话接线员加入了罢工的行列，400万工程技术工人也在计划采取行动。
The pastor requested the women present to join him in prayer...
牧师请在场的妇女们和他一起祈祷。
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VERB
加入（队伍）；排（队）
If you join a queue, you stand at the end of it so that you are part of it.
例句
Make sure you join the queue inside the bank.
在银行里一定要排队。
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VERB
连接；接合
To join two things means to fix or fasten them together.
例句
The opened link is used to join the two ends of the chain.
开口的链环是用来将链子的两头连接起来的。
...the conjunctiva, the skin which joins the eye to the lid.
将眼睛和眼睑连在一起的薄膜——结膜
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VERB
（线、小路等）连接，贯通
If something such as a line or path joins two things, it connects them.
例句
It has a dormer roof joining both gable ends...
带天窗的斜屋顶连接着两边的山墙。
The car parks are joined by a footpath.
停车场中间有一条人行道。
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V-RECIP
（道路或河流）会合，汇合，交汇
If two roads or rivers join, they meet or come together at a particular point.
例句
Do you know the highway to Tulsa? The airport road joins it.
你知道通向塔尔萨的公路吗？去机场的路和它交会。
...Allahabad, where the Ganges and the Yamuna rivers join.
安拉阿巴德，恒河和亚穆纳河的交汇之处
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N-COUNT
连接处；接合点；接头；接缝
A join is a place where two things are fastened or fixed together.