effective signal radiated

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. The medicineis effective for treating the common cold.
   这种药对治疗普通感冒有效。
3. 3. The manager's leadership style is effective in inspiringhis team.
   经理的领导风格在激励团队方面是有效的。