1. Aerenchyma in plant roots helps to facilitate the exchange of gases in waterlogged soils.
植物根部的气孔组织有助于在富含水分的土壤中促进气体交换。

2. The presence of aerenchyma in aquatic plants allows them to float and obtain oxygen from the air.
水生植物中气孔组织的存在使它们能够漂浮，并从空气中获取氧气。