: Humans are unable to see during nighttime. , Clothes end up polluting the planet. , Cities consume tons of energy. , Meat production significantly harms the environment., Water resistance slows down swimmers., Running can strain your knees., Humans are becoming increasingly lonely., Many couples cannot afford to have children., Navigating cities is challenging for blind people., DangDangerous chemicals might be smuggled through airports.,

Problems B2

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排行榜

隨機卡是一個開放式範本。它不會為排行榜生成分數。

視覺風格

選項

切換範本

恢復自動保存: ?