1. Flags and bunting hung limply in the still, warm air. 旗子和飘带在静止、温暖的空中无力地垂着。
2. With the arrival of warm and pleasant weather, flowers are blooming in the warm air. 随着温暖宜人天气的到来,鲜花在温暖的空气中盛开。
3. Without those masses of cooling sea ice, warm air brought to the Arctic can penetrate further inland than it ever did before. 如果没有这些大量冷却的海冰,被带到北极的暖空气可以比以前更深入渗透到内陆。
4. Suddenly, there appeared a hole in their nest. The cold wind blew in through the hole and got away the warm air from the nest. 突然,他们的巢里出现了一个洞。冷风从洞里吹进来,把巢里的暖空气吹走了。
5. Birds use warm air currents to help their flight. 鸟利用暖气流助飞。