External enemies are relatively easy to understand and defend against.
外在的敌人相对容易理解和防范。
该句使用形容词比较级relatively easy表达外部问题相对容易处理的特点。
"The more successful you are, the more likely you face jealousy and setbacks."
"The students struggled to navigate through the mysterious, dark space."
"Only by sailing through the waves can one realize the vastness of the sea."
"If you feel the climb is difficult, it means you are on the way up!"
"Life's journey is rarely smooth; adversity and setbacks are often inevitable."