(at a customs area in an airport or port) the passage which should be taken by arriving passengers who have no goods to declare.
（机场或口岸的海关检查区，供无申报物品的旅客通过的）绿色通道
Example sentencesExamples
The teenage footballer's wife-in-training walked through the green channel at customs, apparently unaware that she had exceeded the limit on goods purchased abroad by almost a hundredfold.
I blush every time I come through the green channel at Customs.
Definition of green channel in US English:
green channel
noun
(at a customs area in an airport or port) the passage which should be taken by arriving passengers who have no goods to declare.
（机场或口岸的海关检查区，供无申报物品的旅客通过的）绿色通道
Example sentencesExamples
I blush every time I come through the green channel at Customs.
The teenage footballer's wife-in-training walked through the green channel at customs, apparently unaware that she had exceeded the limit on goods purchased abroad by almost a hundredfold.