| 1. | Currents of warm air keep the hang - gliders aloft
悬挂式滑翔机藉著暖气流在高空飞行 |
| 2. | Currents of warm air keep the hang - gliders aloft
悬挂式滑翔机藉着暖气流在高空飞行 |
| 3. | Currents of warm air keep the hang - gliders aloft
悬挂式滑翔机藉著暖气流在高空飞行 |
| 4. | Warmer air rises and cooler air falls
暖气流上升，冷气流下降。 |
| 5. | Here , warm air flows up from the gulf of mexico in the spring and summer and crashes into cold air pushing down from canada
春夏两季，暖气流从墨西哥湾登陆，与加拿大的强大冷气流相撞。 |
| 6. | When rain - cooled downdrafts hit warm air near the ground , a low hanging revolving cloud forms beneath the cell ， a tornado is imminent
当雨冷凝形成的下降气流遭遇地表暖气流时- - - - “超级风胞”下方一股低空旋转的云团便已形成，龙卷风就要让我们大难临头了。 |
| 7. | Though the temperature starts to rise , spring is also a season with alternate cool and warm weather , brought about by the occasional passage of a cold front from the north
虽然春天气温逐渐上升，然而这也是一个受冷暖气流交替影响的季节，不时仍有来自北方的冷锋过境。 |
| 8. | It is also humid and foggy in the spring . fog forms when the moist and warm air from the south crosses the relatively cool waters in the south china sea
春天也是潮湿多雾的季节，那些来自南面的湿暖气流，在遇到华南沿岸较低温的海水时被冷却而形成雾潮湿的空气会阻碍汗水散发，使人感到四肢沉重乏力。 |
