mr. li： you've traveled abroad a lot， tom， so would you like to tell me something about clearing customs.
tom： when you arrive in a country， you clear customs. a lot of countries have two channels： the green channel and the red channel. some countries， like india， have three channels： the white channel， the green channel and the red channel.
mr. li： then what are the differences between the green channel and red channel？
tom： if you have more than the duty-free allowances or prohibited goods， you go through the red channel and declare them to a customs officer. if you otherwise have nothing to declare， you go straight through the green channel unless you are asked to stop by an officer.
tom： when you arrive in a country， you clear customs. a lot of countries have two channels： the green channel and the red channel. some countries， like india， have three channels： the white channel， the green channel and the red channel.
mr. li： then what are the differences between the green channel and red channel？
tom： if you have more than the duty-free allowances or prohibited goods， you go through the red channel and declare them to a customs officer. if you otherwise have nothing to declare， you go straight through the green channel unless you are asked to stop by an officer.