The second element is the name of the originating channel, and the third argument is the actual message payload.

第二个参数表示通道(消息类型)，最后第三个参数表示真正的消息内容。

youdao

The second element is the name of the originating channel, and the third argument is the actual message payload.

第二个元素代表匹配，第三个元素通道名字的开始，最后一个元素是真正消息内容。

youdao

Even the argument for the fourth proposed channel is less than compelling.

ECONOMIST: Let the BBC expand��but privatise it first

Ala carte so that TV customers get to choose channel by channel which ones they want, the typical economist argument goes, has got to be better than the bundling where you mix all the channels together and a person has to make a take-it-or-leave-it decision about the whole bunch.

NPR: World Bank Changes, Understanding Unemployment

As ever, the argument would be that the Bank cannot hope to control what is happening across the Channel, or prevent it from darkening the prospects for the UK. But it can do all it can to offset the upward pressure on bank funding costs and the downward effects on confidence.

BBC: Bank of England sets sail with QE3