Asynchronous - the consumer USES a pair of threads to invoke the service; one thread sends the request, then a separate thread receives the response.

异步——使用者通过两个线程调用服务；一个线程发送请求，而另一个单独的线程接收响应。

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While electricity exists as separate charges, like the plus and minus of a battery, magnets always come in a joined pair;

电可以作为分开的电荷存在，比如说电池的正极与负极，而磁则总是要成双成对地出现。

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Each table row must be in a separate element so the browser knows which key pair and security group is selected when the Start button is clicked.

每个表格行必须位于一个单独的元素中，这样当单击Start按钮时，浏览器才能知道选中了哪个密匙对和安全组。

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Eventually it needed a tie-break, won by the Lithuanian, to separate the pair, with the last three points all Ward errors.

BBC: Great Britain suffer humiliating Davis Cup defeat

James Kelbie, the man Cumming tried to blame for the stabbing, attempted to separate the struggling pair.

BBC: Man sentenced to life for murder outside Dundee pub

The judges were unable to separate the Salford pair of Andy Jones and his Ethiopian-born clubmate Tomas Abyu, who crossed the finishing line together in 64.49.

BBC: SPORT | Athletics | Mason beats Morris on Merseyside