Kau-ōaⁿ-só͘

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Kau-ōaⁿ-só͘ (Eng-gí: exchange) sī ū-cho͘-chit ê chhī-tiûⁿ, choan-bûn tī chèng-koàn, siong-phín, gōa-kok-gîn kau-ōaⁿ, kî-hòe, kap option ê bé-bē.