"Great protection for toes and great to lounge around. Also great for travel in tropics with aquatic activities, " another says.
“能很好地保护脚趾，很适合闲逛。去热带地区旅游做水上运动也特别好，”另外一个人说。
The reasons leading to the degeneration of aquatic ecosystem are various and the mismanagement of human economic activities is the major factor.
导致水生态系统退化的原因多种多样，而人类经济活动的不当是主要的作用因子。
The reasons leading to the degeneration of aquatic ecosystem are various and the mismanagement of human economic activities is the major factor.
导致水生态系统退化的原因多种多样，而人类经济活动的不当是主要的作用因子。
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