effective half-word location

例句：

1. 1. The new policy is effective in reducing pollution.
   新政策在减少污染方面是有效的。
2. 2. He found the solution to be effective in solving the problem.
   他发现解决方案在解决问题上是有效的。
3. 3.The new software is effective at handling large volumes of data.
   这款新软件在处理大量数据时非常有效。