1、The downdraft from the thunderstorm caused trees to sway and debris to fly.
雷暴带来的向下气流让树木摇摆起来，碎片飞扬。

2、The pilot skillfully navigated through the downdraft to land the plane safely.
飞行员巧妙地驾驶飞机穿越下降气流，安全降落。