有些鱼类能吃掉杂草从而保持湖塘、水道的清洁。中国草鱼即是一例，它能吃掉大量狐尾草之类的长在水面下的杂草。
Some kinds of fish will keep lakes and water-ways clear by eating water weeds. the Chinese grass carp is one. it eats large amounts of water milfoil and other weeds that grow under the water surface.
花朵，草，树木和石头之类的物体的冷却速度比空气快。
Objects such as flowers, grass, wood and stone cool faster than the air around.
除了种植诸如柠檬草和马槟榔之类的本地食物以外，他还种了白菜、西红柿和玉米。
Along with native foods like lemon grass and capers, he raises bok choy, tomatoes and corn.
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