英文100-150左右，谢谢！！
參考答案:你说的是否是 channel? 以下是几个解释,希望对你有用:
Channel
n.
The bed of a stream or river.
The deeper part of a river or harbor, especially a deep navigable passage.
A broad strait, especially one that connects two seas.
A trench, furrow, or groove.
A tubular passage for liquids; a conduit.
A course or pathway through which information is transmitted: new channels of thought; a reliable channel of information.
A route of communication or access. Often used in the plural: took her request through official channels.
In communications theory, a gesture, action, sound, written or spoken word, or visual image used in transmitting information.
Electronics. A specified frequency band for the transmission and reception of electromagnetic signals, as for television signals.
Computer Science. A site on a network, as on IRC, where online conversations are held in real time by a number of computer users.
The medium through which a spirit guide purportedly communicates with the physical world.
A rolled metal bar with a bracket-shaped section.
A temporary opening in a cell membrane that allows ions or molecules to pass into or out of the cell.
