heavy neutral stock

例句：

1. 1. Theheavy rain caused the roads to be flooded.
   大雨导致道路被淹没。
2. 2. He feltthe weight of his responsibilities.
   他感到自己责任的重大。
3. 3. The heavy snow made it difficultto travel.
   大雪使得旅行变得困难。