to the extent that he meaning in Chinese

即
就其进行下述事情的范围而言

He had recovered from a slow start to the extent that he taught himself advanced calculus and geometry textbooks .
他已从缓慢的开端发展到能依靠教科书自学高等微积分和几何学。
But by the time he was fourteen years old , he had recovered from a slow start to the extent that he taught himself advanced calculus and geometry from textbooks
但到14岁时，他从早期迟钝中苏醒过来，能自学教科书，掌握了高等微积分和几何学。
To the extent that he seeks to compensate for this uncertainty by charging a higher rate of interest across the board , the rest of us , who have a good credit history , suffer
假使银行为求自保一律提高有关利息收费以弥补风险，便会连累一些信贷记录良好的客户。
When a person is faced with legal proceedings , he is expected to draw on his own financial resources to meet the costs incurred as others do , to the extent that he does not suffer undue hardship
面对法律程序的人，理应与其他人士一样，在对其不会造成过度困苦的前题下，尽量以自己的财务资源支付所涉及的费用。