Ou Xiaotong : 塑料袋 3 Rates Tuesday 9 February 2021 Ou Xiaotong B1 female male teenager 60-90 seconds purchase, buying, shopping progress environmental protection save the planet consumer society 两个年轻人买东西 ：男的拿了塑料袋，女的反对觉得不环保。 MP3 – 1.4 Mb IMG/mp3/proteger_l_environnement.mp3
