downdraft carburetor

例句：

1. 1. Downdrafts can be a problem in cold weather because they cause the air to move faster.
   在寒冷的天气中，下吹风可能会导致空气流动速度加快。
2. 2. The engine's downdraft is responsible for its ability to generate power.
   发动机的下吹风是它产生动力的能力的原因。
3. 3.The downdraft from the mountain caused the river to flow more strongly.
   山的下吹风使河流流动得更加强劲。