气温下降时作物和树木的保暖
Hints:
Florida
the Sunshine State
Brazil
Arctic Air
Florida, in the southeastern United States, is called the Sunshine State. It grows more oranges than anyplace except Brazil. But Arctic air has damaged some Florida oranges and strawberries in recent days, and killed fish at tropical fish farms. The unusually long period of cold weather has shown …
位于美国东南部的佛罗里达州被称作是阳光州。除巴西外，它是种植柑橘最多的地方。但是近日北极冷气团破坏了佛罗里达州的柑橘和草莓，还导致热带渔场里的鱼死亡。 这一不寻常的长时间寒冷天气证明了无论气候如何变暖也会结冰。但是如果你按照下列建议做，保护花园里的植物树木也不是一件难事。 突然的降温，特别是在一段温暖…