电子邮件已成为商业沟通的重要渠道。
Email has become an essential ___conduit for business communication.
工人们正在安装新的管道来输送电力。
Workers are installing new ___conduits to carry electricity.
电子邮件已成为公司与客户之间沟通的重要渠道。
Email has become an important ___conduit for communication between companies and customers.
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