pea-soup fog

例句：

1. 1.The pea-soup fog made it difficult to see clearly.
   豌豆汤雾使得视线变得模糊。
2. 2.She sipped her tea while watching the pea-soup fog outside.
   她一边喝茶一边欣赏外面的豌豆汤雾。
3. 3.The pea-soup fog was so thick that it obscured everything beyond a few feet.
   豌豆汤雾非常浓密，以至于在几英尺之外什么都看不见。