how far的用法和样例：
例句
- How far is the school from here?
学校离这里多远？ - The paper finally analyzes how far RCCs could be commercially sustainable after reform.
本文通过大量的问卷调查分析目前的农村信用社改革离这一目标还有多远。 - I don't know how far to rely on him.
我不知道应该依靠他到什么程度。 - How close was the North Korean-Syrian cooperation?
叙利亚和北韩的合作密切到什么程度？
