因为我最了解他的心

一把坚实的大锁挂在大门上，一根铁杆费了九牛二虎之力，还是无法将它撬开。钥匙来了，他瘦小的身子钻进锁孔，只轻轻一转，大锁就”啪”地一声打开了。 铁杆奇怪地问：”为什么我费了那么大力气也打不开，而你却轻而易举地就把它打开了呢？” 钥匙说：”因为我最了解他的心。”

A sturdy big lock was hung on the gate. A hard iron bar had tried its very best but still couldn't pry it open. At this time, the key came. Its slim body slipped into the keyhole. With just a slight turn, the big lock was opened with a "click". The iron bar asked in surprise, "Why couldn't I open it despite my great efforts while you did it so effortlessly?" The key replied, "Because I know its heart best."