effective address

例句：

1. 1. The newpolicy is expected to be effective in reducingpollution.
   预计新政策能有效减少污染。
2. 2. Themanager's suggestion was very effective insolving the problem.
   经理的建议非常有效地解决了这个问题。
3. 3. The new software is effective at organizingdata.
   这款软件在整理数据方面非常有效。