環境問題
The problem with plastics -- and how they're changing the environment Speaker: Patricia Villarrubia-Gómez www.youtube.com 演者はスゥエーデンの大学院生です。
The problem with plastics -- and how they're changing the environment Speaker: Patricia Villarrubia-Gómez www.youtube.com 演者はスゥエーデンの大学院生です。