咩叫inbound??同埋有d咩算係inbound??

It is a form of tourism (入境旅遊) .
The United Nations classified three forms of tourism in 1994 in its Recommendations on Tourism Statistics: Domestic tourism, which involves residents of the given country traveling only within this country; Inbound tourism, involving non-residents traveling in the given country; and Outbound tourism, involving residents traveling in another country.
The UN also derived different categories of tourism by combining the 3 basic forms of tourism: Internal tourism, which comprises domestic tourism and inbound tourism; National tourism, which comprises domestic tourism and outbound tourism; and International tourism, which consists of inbound tourism and outbound tourism. Intrabound tourism is a term coined by the Korea Tourism Organization and widely accepted in Korea . Intrabound tourism differs from domestic tourism in that the former encompasses policymaking and implementation of national tourism policies.
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http://en.wikipedia.org/wiki/Tourism

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A form of tourism (入境旅遊) .