ReadWriteQuiz
Chinese dictionary
be easy to defend/hold but hard to conquer
在那些易守难攻的大山里,游击队可以坚持很多年。
In those impregnable mountains, the guerrillas could hold out for years.
在那些易守难攻的大山里,游击队可以坚持很多年。
In those impregnable mountains, the guerrillas could hold out for years.