effective protection

• 有效保护

effective protection的用法和样例：

例句

1. Groups of women in special need had also been effectively protected.
   特殊妇女群体也受到有效保护。
2. An entire flock of sheep can be effectively protected by an unleashed dog.
   解开皮带放开一条牧羊犬的就可以有效保护整个羊群。