酸奶中的益生菌有助于维持肠道菌群的平衡。
Probiotics in yogurt help maintain the balance of gut ___flora.
这个地区的森林以丰富的树种而闻名。
This region is famous for its rich ___flora of various tree species.
这个地区特有的植物群正在因气候变化而逐渐消失。
The unique ___flora of this region is gradually disappearing due to climate change.