diffuse nontoxic goiter

例句：

1. 1. The news of the new policy will diffuse throughout the city.
   新政策的新闻将在整个城市中传播。
2. 2.The oil spill was diffused by a strong wind.
   一场石油泄漏被一阵强风所消散。
3. 3. The seeds diffused slowly into the soil.
   种子慢慢扩散到土壤中。