求文章翻译⚡️ The water hyacinth grows in tropical countries. It has beautiful purple-blue flowers, but everybody hates it. Why? Millions and millions of these plants grow in rivers and lakes. Sometimes the plants bee so thick that people can walk on them. People cannot travel in boats on the water, and they cannot fish in it. The plants stop the water from moving. Then the water carries diseases. Farmers cannot use the water on their land. Now scientists think that water hyacinths can be useful. The plants are really a free crop. No one has to take care of them. They just grow and grow and grow. What can farmers use them for? Some fish like to eat them. Farmers can grow these fish in the lakes and rivers. Workers can collect and cut the plants with machines. Then they can also make fertilizer to make their crops grow better. They can also make feed for their farm animals. Maybe it will be possible to make methane gas for energy. (We burn gas from petroleum for energy. Methane gas can be made from plants.) Then poor tropical countries will not have to buy so much expensive petroleum. Maybe in the future people will love the water hyacinth instead of hating it.
网友回答
水葫芦生长在热带国家。它有美丽的紫蓝色的小花，但每个人都讨厌它。为什么？数以百万计的这些植物生长在河流和湖泊上。有时植株变得很浓，人们可以步行。人不能在旅游船在水上，他们不能在这鱼。植物阻止水从移动。然后水传疾病。农民在他们的土地上不能使用水。现在科学家认为，水葫芦可以是有用的。植物真的是一个免费的作物。没有人照顾他们。他们只是逐渐长大。什么农民使用它们呢？有些鱼喜欢吃。农民可以种植这些鱼在湖泊和...