effective depth of section

例句：

1. 1. The new policyis expected to be effective in reducing pollution.
   预计新政策能有效减少污染。
2. 2. This method is effective for solving this problem.
   这种方法对于解决这个问题很有效。
3. 3. The manager's leadership style is effective in inspiring team members.
   经理的领导风格在激励团队成员方面是有效的。