effective atomic number

例句：

1. 1.The new policy will be effective immediately.
   新政策立即生效。
2. 2.The medicine is effective against the common cold.
   这种药对普通感冒有效。
3. 3. The manager's leadership style is highly effective in improving team morale.
   经理的领导风格在提高团队士气方面非常有效。