policy of keeping the people in ignorance

例句：

1. 1.The child was born with a condition that caused him to be completely ignorant of the world around him.
   这个孩子出生时患有一种病，导致他对周围的世界一无所知。
2. 2. She was so ignorant of the dangers of smoking that she continued to smoke despite her doctor's warnings.
   她对吸烟的危险一无所知，尽管医生警告过她，她还是继续吸烟。
3. 3. The government's policy of keeping people in ignorance is unjust and unfair.
   政府的政策是让人们保持无知，这是不公正和不公平的。