gaining

例句：

1. 1. We need to gain more knowledge about the topic.
   我们需要更多地了解这个主题。
2. 2. The company has gained a lot of market share in recent years.
   这家公司近年来在市场份额上获得了很多。
3. 3.Gaining weight is not easy for everyone, especially when starting a new diet.
   对每个人来说，增重都不容易，尤其是开始一个新的饮食计划时。