By demonstrating his floating contraption - part surfboard, part kayak and part sailboard - Halfon hopes to create a tide of attention.通过展示那个又像冲浪板,又像轻型独木舟,又像帆板的浮水的怪物,哈尔丰期望能引来众人的目光。Floating plants are useful because they shade the surface of the water.浮水植物有助荫蔽水面。