資深空姐爆料！登機前做這一件事，經濟艙免費升級爲商務艙！

https://goodlah.org/watch/282296?fbclid=IwY2xjawKCnJFleHRuA2FlbQIxMABicmlkETFXV1NoUWIwM0s5SktNU0dzAR78Vz-hVi6bpgBht05aHFy_Sl900QNoFGoTuRDp3JfsZ_CtMsW-RG5_Sziy8g_aem_WwNTMXSqCocgXq5Mcly6fw